Adjusted tests for the dataType usage.

Updated jQuery for the test page.
Allow reenabling the submit button in the submit callback. Closes #2639
Updated Gallery requirement.
Updated package versions.
Allow configuration of iframe src attribute
Create new event objects for each fileupload event trigger.

The original jQuery event can be accessed as delegatedEvent property.
Support preventDefault on the event callbacks to disable default behavior. Closes #2651
Merge pull request #2652 from bmwyant/master

Allow configuration of iframe src attribute
Merge branch 'master' of github.com:blueimp/jQuery-File-Upload
Added new initialIframeSrc option, based on pull request #2652.
Added alternative imagick library implementation for the image handling.

Improved memory management for the GD library image handling.
Make sure templates with fade class are hidden before the transition is applied. Closes #2654
Adjusted recommended Gallery version.
Updated package version.
Handle cases where loadImage failed to load the image.
Added option to set imagick resource limits.

Destroy old image objects in gd_set_image_object method.