Escape \u2028 and \u2029 in JSONP.

Thanks to @vfaronov for the report.
Don't count Django dev builds as failures in Travis.
Refactor GenericResource resource lookups

GenericResource instances maintain a mapping of resource names to
resources. This allows them to limit urls only to valid resources,
and to construct appropriate resources without relying on
func_closures.
Allow no max limit on the Paginator.

0 is a valid value for limit. If there is a max limit, take that,
otherwise no limit.

Thanks to @dfryta and @Solvik for the reports.
Resource: consistently use Meta.collection_name when available.
Update mik3y in AUTHORS file.
Fixed an issue where queryset needed to be defined for build_filters to succeed on a ModelResource. Affected alternate implementations of ModelResource.

Thanks Mitar for the patch, test, and follow-up
Closes #670
Add a db index to the ApiKey model.
Added jdunck to AUTHORS.
Spruced up the ApiKey migration to not fail on MySQL.
Spelling fix in the compatibility notes. Thanks to dgerzo for the eagle eyes!
Added tastypie-msgpack to TOOLS.
Sadly crate.io's API is no longer exposed
fix typo in header
Merge pull request #749 from illumin-us-r3v0lution/master

Thanks illumin-us-r3v0lution!

fix small typo in docs/content_types.rst
Typo in docs/validation.rst
Merge pull request #774 from jsummerfield/patch-1

Typo in docs/validation.rst
Remove unused imports in models.py
Merge pull request #735 from davidfischer/master

Thanks davidfischer and andrewaustin.

Crate.io API link is dead
Merge pull request #786 from andrewaustin/andrew

Remove an unused and duplicate import in models.py  Closes #746

THanks andrewaustin!