Merge tag 'v1.3.11'

Fixed disabling of Dropzone and added an enable() function.
Merge tag 'v1.3.12'

Added an init() option function.
Merge tag 'v2.0.0'

Dropzone does not depend on jQuery anymore!
Merge tag 'v2.0.1'

All 2xx http codes are treated as success now.
Merge tag 'v2.0.2'

Small bugfixes.
Merge tag 'v2.0.3'

Fixed .remove() bug.
Merge tag 'v2.0.4'

Fixed previewsContainer bug.
Merge tag 'v2.0.5'

Added a removeAllFiles() function and the options.method
Merge pull request #87 from dhotson/assignment-bug

Fixed equality check of tagName
Added download files.
Upgrading version to 2.0.6
Upgrading version to 2.0.7-dev
Merge tag 'v2.0.6'

Fixed tag equality check.
Download files are generated with grunt now.

Closes #79
Removed deprecated download script.
Updated the contributing info for grunt.
Added the watch task
Added minified JS files.
Upgrading version to 2.0.7
Upgrading version to 2.0.8-dev