Closes #38, closes #88

Just a suggestion, so that users get the latest django security release (currently 1.5.9).

latest.

everything from pypi instead of pulling from git repos.

Factory Boy 2.0 have removed the "extracted_key" keyword argument from
post_generation() hook. Until we can update tests to work with 2.0 make
dependency on 1.3.x branch. In turn, the update got stalled by a bug
in Factory Boy (https://github.com/rbarrois/factory_boy/issues/53).

TastyPie 0.9.13 doesn't install (reported upstream at
https://github.com/toastdriven/django-tastypie/issues/873) so use
0.9.12 for now.

This commit is a foundation upon a more robust image fetching code
will be built in the future, and it already fixes at least one weird
issue I've seen.

Use forked django-images for now, until we can communicate with the
upstream about it. Fixes #4

Finally had time to figure out the problem "caused" by django_compressor,
so we can no re-enable it. Fixes #3

There has been issues when running a full test suite (for pinry and
the entire Django stack), and test fixtures are hard to maintain anyway,
so rewrite tests to use a Model mocker library (Factory Boy) to populate
database.

Generate thumbnail and standard image on request, and use
http://github.com/mirumee/django-images for generating them. Also,
remove the CreatePin page as pin creation is going to be done
in JavaScript. Create UploadImage view for uploading images from
computer.

-e should be used only with repositories apparently

The previous commit uses url syntax from Django 1.5, which is incompatible with earlier versions. Bump the Django version
and use the stable/1.5.x git branch until it's officially released.