Fix thumbnail colors in case of image with color profile
Add layers tab to toolbar
Fix #208 : ImageInterface::save $path argument is now optional
Fix #232 : ImageInterface::save format option should be optional if original file type is known
Address stof comments
Merge pull request #241 from romainneutron/thumbnail-colors

Fix thumbnail colors in case of image with color profile
Merge pull request #236 from romainneutron/optional-filename

Fix #208 and #232 : ImageInterface::save $path argument is now optional, format option is now optional
Add watermark example
Add test to demonstrate #245
Fix #245
Merge pull request #246 from romainneutron/fix-245

Fix #245 : color cache forgets alpha value
Fix PHP strict standards
Fix #248 : use better algorithm for thumbnailing
Add filter argument to thumbnail method
Fix #247 : preserve alpha transparency
Merge pull request #249 from romainneutron/fix-thumbnail

Fix #248 : add better algorithm for thumbnail resize + add filter argument to ImageInterface::thumbnail method
Merge pull request #250 from romainneutron/fix-transparency

Fix #247 : preserve alpha transparency with Imagick driver
Use composer install instead of upgrade
Fix default RGB profile to get better color conversion
Merge pull request #261 from romainneutron/fix-default-rgb-profile

Fix default RGB profile to get better color conversion