Don't System.exit if exit value is zero
Updated ChangeLog
Use Unix-style line endings

- all Java files now use Unix-style line endings
- all files with mixed line endings have been normalized
- removed trailing whitespace
- fixed some indentation problems
Adjusting ray depth does not reset render

- adjusted maximum value of ray depth slider
- changing the ray depth value does not reset the current render

fixes #103
Implemented render dump merging

fixes #106
Removed double cvf backuping
Update canvas after merging dump
Dynamically handle animated textures

fixes #108
Updated ChangeLog
Changed merge dump task name
Added gitattributes
Added git attributes
Corrected merge render dump filter