Minor Release: Add JsonSerializable to attachments, commnity contribu…

…ted fixes for data URI validation.

Minor Release: Hotfix issue #100

Minor release: Bump HttpFoundation version for Laravel 5.2 compatibil…

…ity, remove php 5.4 from travis CI.

Minor release: Add design by contract, new attachment convenience met…

…hods, and a few bug fixes.

More community bug fixes and minor changes.

- Updated Imagine\Image to 0.6.2
- Fixed syntax error in the image processing docs.
- Converted the app to PSR1/2 coding style.
- Updated the url validation to take into account the secure_hash interpolation.
- Updated the composer dev requirements to now use Laravel 4 or 5 Illuminate packages.
- Refactored the image resizer class so that it no longer leaves tmp files inside the tmp files dir.

Minor changes and community contributed bug fixes.

- Added support for Data URI's
- Updated image processing documentation.
- Interpolations now work correclty with ID's containing non-printable chars.

Hotfix for adding backwards compatibility with the old hash interpola…

…tion.

This minor version contains several small community contributed bug f…

…ixes:

- Merged in contributed pull requests to fix a bug that was preventing remote urls that contained a query string from being fetched.
- Merged in a contribution to allow support for S3 base_url config option.
- Merged in a pull request to increase the security of the hash interpolation.
- Merged in a pull request that allows the EloquentTrait to override the getAttributes method so that stapler attachments will show up in the attributes of a model.
- Merged in a pull request to fix a bug that was preventing the renaming of files that have been mounted across multiple volumes.

Multiple changes and small bug fixes applied to this version:

- Updated Stapler to use PSR-4 autoloading.
- Merged in contributed pull requests that fix a bug that was occuring when attempting to fetch a remote image url that contained a redirect.
- Merged in a contributed pull request that adds php 5.5, 5.6, and HHVM to Travis CI.
- Cleaned up a small bug in the Resizer library when auto-determinign optimal crop dimensions.

Version 1.0.01