Updated unit tests to no longer use mocks of DateTime
Updated the requirement of phpunit/phpunit to ~4.0
Verify extension provided when generating ShortUrls
Updated dependencies
Merge pull request #281 from christeredvartsen/phpunit-upgrade

Upgraded PHPUnit
Initial commit of robots.txt and humans.txt
Added Mats
Added André and Espen
Merge pull request #282 from christeredvartsen/humans-and-robots

Add robots.txt and humans.txt
Merge branch 'shorturl-verify-extension' of https://github.com/rexxars/imbo into rexxars-shorturl-verify-extension
Adds x-jpeg, x-png and x-gif as accepted mimetypes.

These mimetypes may be returned by ImageMagick on Windows when
calling ->getMimeType() on an imagick object.
Added test case and updated ChangeLog
Add a histogram transformation.

This transformation converts the image into a graph representation
of the color usage in the image. The base size of the histogram is
a width of 256px.

The transformation supports four parameters:

    scale: Allows you to set the width of each bar in the histogram.
           Setting a large scale will allow for anti-aliasing later.
      red: The color to use when drawing the red part of the graph.
    green: Same for green.
     blue: .. and same for blue.

Add a resize/maxSize transformation to resize the resulting image
down to the wanted size if you use the scale parameter and don't want a
size multiplied with 256.
Fix syntax issues with the original pull request.
Make ratio between width and height configurable
Added a mapping for some mime types
Updated ChangeLog
Merge pull request #286 from christeredvartsen/issue-286

Save image/x-jpeg, image/x-png and image/x-gif as image/jpeg, image/png and image/gif
Added a histogram transformation
Removed whitespace