Added a convience function for generated depreciated function messages.

The message will only be displayed to the user if Drupal is configured to show these
warnings, regardless of the setting though it will be logged to the watchdog.
Appease the Travis God! The one true build master!

May my code be clean, and follow the law's of "standard".
May it support internationalization for Travis includes all!
May it not contain copy pasta for it is soggy.

Travis be praised!
Configuration options now accept multiple objects.
Configuration no longer requires validation.
Added Convience method for determining if the ingest forms can be rendered.
Coding standards compliance?
Merge pull request #325 from nigelgbanks/7.x-ingest-without-xml-forms

7.x ingest without xml forms
Ensure shared variable 'models' is always available in the ingest form.
Merge pull request #327 from nigelgbanks/7.x-fix-nigels-forgetfulness

Fix Error
Minor bug fix.
Merge pull request #328 from jordandukart/7.x

Minor bug fix.
Give fedora more time to startup
Merge pull request #329 from jonathangreen/7.x-travis-sleep

Give fedora more time to startup
Added some test functions.
Fix some coding standards.
Merge pull request #330 from jonathangreen/7.x-rename-tests

Added some test functions.
Renamed test case function
Merge pull request #331 from jonathangreen/7.x-rename-tests

Renamed test case function
Moving backwards though the form now brings the user to the expected step.

There was a mistake where a step was reverting its global changes before it was
actually selected as the previous step. Innocuous enough but it had strange
side effects on the global storage, since the step list would be rebuild with
this information, steps could insert themselves as previous steps even if they
weren't used by the user.
Update README.md
Update README.md
Fix the "TIFF" mimetype.

Was causing issues in the batch importer.