Smarter regex and more tests

• #69 If src image doesn't exist, return a 404 exception.
• #58 Adding unit tests for generate()
• #13 Restrict the route listener regex to just handle images found in a src_dir
• Adding other unit tests and making many private methods public
• Dropping Travis CI support for PHP 5.3 and adding PHP 5.6
• Croppa will regenerate the cropped version of files if generate() is called for a path that already exists
• generate() no longer outputs the image when it finishes. Instead, it returns a Bkwld\Croppa\Image object with a show() method that will echo the binary image data

Bug fixes and tweaks

• Passing through the $src if no width / height are set
• #67
• #64

Append the host to passed through srcs

3.4.2

Append the host to passed through srcs

Passthrough the src if there is no width or height

3.4.1

Pass through the src if there is no width or height

Adding "ignore" config setting

From README:

Ignore cropping for image URLs that match a regular expression. Useful for returning animated gifs.

UMD for croppa.js and bug fix when related to deleting

• #55
• #56