Add travis build on PHP 5.3.3 and 5.5
Merge pull request #188 from romainneutron/travis

Add travis build on PHP 5.3.3 and 5.5
added php extensions to the suggest section
edited suggest messages
Merge pull request #189 from bamarni/patch-2

added php extensions to the suggest section
Implementing sharpen effect
Fixing Gmagick sharpen method
Merge pull request #191 from hisamu/develop

Implementing sharpen effect
Implemented interlace support for GD, Imagick, and Gmagick.
Declared supported interlace types array as static
Fixed missing param and renamed interface param name

- Added missing param for array_key_exists calls
- Renamed $type to $scheme within ImageInterface::interlace
Fixed Typo
Merge pull request #196 from AnthonySterling/interlace-support

Implemented interlace support for GD, Imagick, and Gmagick.
Update Thumbnail.php
Update Thumbnail.php
add Imagick getter into Imagick/Image final class
Merge pull request #210 from come/develop

add Imagick getter into Imagick/Image final class
Add info about Imagick minimum version
Implement ArrayAccess in LayersInterface
Welcome animated gifs, let's have some fun