update changelog

Author: m-schuetz

docs/changelog.md

@@ -2,37 +2,18 @@
 
 ### features
 
-* Splitted .bin files in folders.
-* Introduced the concept of hierarchy and hierarchyStepSize
-* 	hierarchyStepSize defines how many depth-levels are kept in the same directory (further levels are stored in subdirectories)
-* 	hierarchy: The .bin files are organized in subdirectories inside ./data. The cloud.js contains only the hierarchy information of the root (which keeps this file small independently of the cloud size). The hierarchy is stored in .hrc files, in packets of 5 bytes. This list of 5-byte packets is a breadth-first traversal of the tree, starting in itself.
-* 		1 byte with a mask of this node's children. E.g: 00000011 in the file r.hrc refers to the nodes r0 and r1
-* 		4 bytes (unsigned long int) storing the number of points in that node.
+* Update file format to 1.6. (see [Potree File Format](https://github.com/potree/potree/blob/master/docs/file_format.md))
+ * Removed hierarchy from cloud.js and store it in smaller chunks.
+ * Node-files in ./data are now grouped into a directory hierarchy.
+ * RGB, INTENSITY and CLASSIFICATION can be written to the binary format in any order and combination.
+* Added automatic web page generation with the ```--generate-page``` or ```-p``` parameter.
+* Added support for PTX. (Thanks to @chiccorusso)
+* Support for both, 1byte and 2byte colors in LAS or LAZ files.
 
-For example, consider the following output of PotreeConverter:
-*	./data/r
-*	./data/r.bin
-*	./data/r.hrc
-*		./data/r/r0.bin
-*		./data/r/r0.hrc
-*		./data/r/r1.bin
-*		./data/r/r1.hrc
-
-The file ./cloud.js will contain information only about the root:
-        "hierarchy": [
-                ["r", 13291]
-        ]
-
-The file ./data/r.hrc will contain 2 packs of 5-bytes withthe following data:
-* (3,$number_of_points_in_r.bin)
-* (0,$number_of_points_in_r0.bin)
-* (0,$number_of_points_in_r1.bin)
-
-* The byte containing the value 3 (00000011 in binary) shows that the root contains the nodes r0 and r1. The tree is traversed breadth-first, so the following two lines correspond to r0 and r1, respectively:
-* r0 has a value 0 for the mask (so no more children)
-* r1 has a value 0 for the mask (so no more children)
 
+### bugfixes
 
+* Displaying correct number of written points
 
 
 ## 2014.12.30
@@ -46,15 +27,14 @@ The file ./data/r.hrc will contain 2 packs of 5-bytes withthe following data:
 ### features
 * Instead of specifying ```-s arg```, spacing can now also be calculated from the diagonal by specifying ```-d arg```.
   spacing = diagonal / arg. This has the advantage that it scales automatically with the extent of the point cloud.
-  Thanks to @chiccorusso for this feature.
+  (Thanks to @chiccorusso)
 * The default value for the spacing has been changed from ```-s 1``` to ```-d 250```, i.e. spacing = diagonal / 250.
   This seems to work fine for small, as well as large point clouds.
-* Added ```--scale arg``` parameter. This parameter specifies the precision of point coordinates (currently only for 
-  LAS and LAZ output formats). Previously, this was fixed to 0.01 which gives centimeter precision for 
-  point clouds with metric coordinate units. 
-  Thanks to @chiccorusso for this feature.
+* Added ```--scale arg``` parameter. This parameter specifies the precision of point coordinates (currently only for
+  LAS and LAZ output formats). Previously, this was fixed to 0.01 which gives centimeter precision for
+  point clouds with metric coordinate units.
+  (Thanks to @chiccorusso)
 * Added classification, point source ID and return number to LAS and LAZ output.
 
 ### bugfixes
 * Fixed adaptive point sizes. Sometimes, the point size calculation close to the border of 2 nodes failed. This was because the bounding box was written to the cloud.js in low precision.
-