testing dev branch and minor fixes
changed version and updated build
Compacting menus. WIP
merging
Implemented Layer Settings GUI
Layer Settings + Blend Modes
Merge pull request #36 from Longor1996/master

Small changes and fixes.
post-merge adjustements
Compact menus. Closes #33.
fixed minor bug with 'Invert'
Plugin support for new blend modes
'Merged' #37
Layer Merging
updated build
Now using global history. Closes #39.
Fixed minor bug and fixed the 'released' date.
v0.10. Fixes #25, fixes #41
bumped build type to beta
removed debug message
fixed bug where layer manipulation would fail on loaded images