Disable GD rotate test while bug #65148 is open
Merge pull request #228 from romainneutron/build-php-55

Disabling rotate test in GD while bug #65148 is open
Add changelog
Merge pull request #227 from romainneutron/changelog

Add changelog
Update API doc
Update dependencies
Add ColorSpace and ICC profiles support
Add WebOptimization filter
Add color section to documentation, update to latest color API
Add missing copyright file headers
Fix documentation
Fix GD layers
Fix GD layers
Fix layers Tests