--- a/common/src/main/java/digilib/conf/DigilibConfiguration.java	Wed Feb 08 19:22:57 2017 +0100
+++ b/common/src/main/java/digilib/conf/DigilibConfiguration.java	Wed Feb 08 20:24:42 2017 +0100
@@ -57,7 +57,7 @@
 
     /** digilib version */
     public static String getClassVersion() {
-        return "2.4.1a";
+        return "2.5.0a";
     }
 
     /* non-static getVersion for Java inheritance */

--- a/common/src/main/java/digilib/conf/DigilibOption.java	Wed Feb 08 19:22:57 2017 +0100
+++ b/common/src/main/java/digilib/conf/DigilibOption.java	Wed Feb 08 20:24:42 2017 +0100
@@ -7,57 +7,96 @@
  *
  */
 public enum DigilibOption {
-	/** scale the (selected area of the) image proportionally to fit inside [dw x dh], preserving its aspect ratio (default). */
-    fit,
-    /** scale the (selected area of the) image to fill [dw x dh], changing its aspect ratio. */
-    squeeze,
-    /** scale the (selected area of the) image proportionally to fill [dw x dh] with the shorter side, cropping the longer side. */
-    crop,
-    /** scale the (selected area of the) image proportionally to fill [dw x dh] with the longer side, filling out the image on the shorter side if possible. */
-    fill,
-    /** send the file in the highest resolution, cropped to fit [dw x dh]. */
-    clip,
-    /** scale to original size based on image resolution (from the image metadata) and display resolution (from parameter ddpi). Fails if either resolution is unknown. */
-    osize,
-    /** scale the highest resolution image by an absolute factor given by the scale parameter. */
-    ascale,
-    /** send the file as-is (may be very large and all sorts of image types!). If the configuration doesn’t allow sending files (sendfile-allowed=false) revert to clip. */
-    file,
-    /** send the file as-is with a mime-type of “application/octet-stream” so the browser presents a download dialog. */
-    rawfile,
-    /** send error response as plain text. */
-    errtxt,
-    /** send error response as image (default). */
-    errimg,
-    /** send error response as HTTP status code. */
-    errcode,
-    /** quality of interpolation in scaling (q0: worst, q2 best).*/
-    q0,
-    /** quality of interpolation in scaling (q0: worst, q2 best).*/
-    q1,
-    /** quality of interpolation in scaling (q0: worst, q2 best).*/
-    q2,
-    /** only use the highest resolution image. */
-    hires,
-    /** use the pre-scaled image that is bigger than the requested size (default). */
-    autores,
-    /** prefer the next-smaller pre-scaled image. */
-    lores,
-    /** mirror image vertically. */
-    vmir,
-    /** mirror image horizontally. */
-    hmir,
-    /** the resulting image is always sent as JPEG (otherwise TIFF and PNG images are sent as PNG). */
-    jpg,
-    /** the resulting image is always sent as PNG (otherwise JPEG and J2K images are sent as JPEG). */
-    png,
-    /** interpret wx, wy, ww, wh as pixel coordinates on the highest resolution image. */
-    pxarea,
-    /** send IIIF image info (instead of image). */
-    info, 
-    /** send redirect to IIIF image info URI */ 
-    redirect_info,
-    /** dirInfo returns directory contents */
-    dir
-     
+	/**
+	 * scale the (selected area of the) image proportionally to fit inside [dw x
+	 * dh], preserving its aspect ratio (default).
+	 */
+	fit,
+	/**
+	 * scale the (selected area of the) image to fill [dw x dh], changing its
+	 * aspect ratio.
+	 */
+	squeeze,
+	/**
+	 * scale the (selected area of the) image proportionally to fill [dw x dh]
+	 * with the shorter side, cropping the longer side.
+	 */
+	crop,
+	/**
+	 * scale the (selected area of the) image proportionally to fill [dw x dh]
+	 * with the longer side, filling out the image on the shorter side if
+	 * possible.
+	 */
+	fill,
+	/** send the file in the highest resolution, cropped to fit [dw x dh]. */
+	clip,
+	/**
+	 * scale to original size based on image resolution (from the image
+	 * metadata) and display resolution (from parameter ddpi). Fails if either
+	 * resolution is unknown.
+	 */
+	osize,
+	/**
+	 * scale the highest resolution image by an absolute factor given by the
+	 * scale parameter.
+	 */
+	ascale,
+	/**
+	 * send the file as-is (may be very large and all sorts of image types!). If
+	 * the configuration doesn’t allow sending files (sendfile-allowed=false)
+	 * revert to clip.
+	 */
+	file,
+	/**
+	 * send the file as-is with a mime-type of "application/octet-stream" so the
+	 * browser presents a download dialog.
+	 */
+	rawfile,
+	/** send error response as plain text. */
+	errtxt,
+	/** send error response as image (default). */
+	errimg,
+	/** send error response as HTTP status code. */
+	errcode,
+	/** quality of interpolation in scaling (q0: worst, q2 best). */
+	q0,
+	/** quality of interpolation in scaling (q0: worst, q2 best). */
+	q1,
+	/** quality of interpolation in scaling (q0: worst, q2 best). */
+	q2,
+	/** only use the highest resolution image. */
+	hires,
+	/**
+	 * use the pre-scaled image that is bigger than the requested size
+	 * (default).
+	 */
+	autores,
+	/** prefer the next-smaller pre-scaled image. */
+	lores,
+	/** mirror image vertically. */
+	vmir,
+	/** mirror image horizontally. */
+	hmir,
+	/**
+	 * the resulting image is always sent as JPEG (otherwise TIFF and PNG images
+	 * are sent as PNG).
+	 */
+	jpg,
+	/**
+	 * the resulting image is always sent as PNG (otherwise JPEG and J2K images
+	 * are sent as JPEG).
+	 */
+	png,
+	/**
+	 * interpret wx, wy, ww, wh as pixel coordinates on the highest resolution
+	 * image.
+	 */
+	pxarea,
+	/** send IIIF image info (instead of image). */
+	info,
+	/** send redirect to IIIF image info URI */
+	redirect_info,
+	/** dirInfo returns directory contents */
+	dir
+
 }

--- a/common/src/main/java/digilib/conf/DigilibRequest.java	Wed Feb 08 19:22:57 2017 +0100
+++ b/common/src/main/java/digilib/conf/DigilibRequest.java	Wed Feb 08 20:24:42 2017 +0100
@@ -55,7 +55,7 @@
  * wh: height of image area(float from 0 to 1). <br>
  * ws: scale factor. <br>
  * mo: special options like 'fit'. <br>
- * ...et al
+ * ...et cetera
  * 
  * @author casties
  * 

--- a/doc/src/site/markdown/index.md	Wed Feb 08 19:22:57 2017 +0100
+++ b/doc/src/site/markdown/index.md	Wed Feb 08 20:24:42 2017 +0100
@@ -16,7 +16,7 @@
   novel uses of source material by image annotations and stable references that
   can be embedded in URLs.
 * `digilib` facilitates federation of image servers through a standards compliant
-  [IIIF](http://iiif.io) image API.
+  [IIIF](http://iiif.io) Image API.
 * `digilib` is Open Source Software under the Lesser General Public License,
   jointly developed by the
   [Max Planck Institute for the History of Science](http://www.mpiwg-berlin.mpg.de),

--- a/doc/src/site/markdown/scaler-api.md	Wed Feb 08 19:22:57 2017 +0100
+++ b/doc/src/site/markdown/scaler-api.md	Wed Feb 08 20:24:42 2017 +0100
@@ -6,9 +6,10 @@
 
 Unknown parameters will be silently ignored.
 
-Recognised parameters (as of Version 2.3.7, for the most recent list of 
-parameters 
-[use the source](https://sourceforge.net/p/digilib/code/ci/default/tree/servlet/src/main/java/digilib/conf/DigilibServletRequest.java)
+Recognised parameters (as of Version 2.5.0, for the most up to date information use the source for
+[parameters](https://sourceforge.net/p/digilib/code/ci/default/tree/servlet/src/main/java/digilib/conf/DigilibServletRequest.java)
+and
+[mode options](https://sourceforge.net/p/digilib/code/ci/default/tree/common/src/main/java/digilib/conf/DigilibOption.java)
 ):
 
 - `request_path`: (optional) path to file or directory.
@@ -64,9 +65,11 @@
     - `BITONAL` (produces black-and-white image) 
     - `INVERT` (inverts colors)
     - `MAP_GRAY_BGR` (produces false-color image mapping brightness values to color scale from blue via green to red).
-- `mo`: list of flags for the mode of operation separated by comma ",".
-    - `fit`: scale the image proportionally to fit inside \[`dw` x `dh`\], preserving its aspect ratio (default).
-    - `squeeze`: scale the image to fit \[`dw` x `dh`\], changing its aspect ratio.
+- `mo`: list of options for the mode of operation separated by comma ",".
+    - `fit`: scale the (selected area of the) image proportionally to fit inside [dw x dh], preserving its aspect ratio (default).
+    - `squeeze`: scale the (selected area of the) image to fill [dw x dh], changing its aspect ratio (since v2.3.3).
+    - `crop`: scale the (selected area of the) image proportionally to fill [dw x dh] with the shorter side, cropping the longer side (since v2.5).
+    - `fill`: scale the (selected area of the) image proportionally to fill [dw x dh] with the longer side, filling out the image on the shorter side if possible (since v2.3.3).
     - `clip`: send the file in the highest resolution, cropped
         to fit \[`dw` x `dh`\].
     - `osize`: scale to original size based on image