Simplification and improvement of Schema Mode:
 * increased compatibility with django-admin and django-rest-framework
 * removed the need of using hstore.SchemaModel as base model
 * removed the need of using HStoreSchemaAdmin as base admin class
 * removed unnecessary code
updated docs to reflect changes to schema mode
updated VERSION to 1.3.0 beta
Added deconstruct method to virtual field.
Avoid breaking the django 1.7 migration framework.
if this pull request gets accepted this method can be removed:
  - https://code.djangoproject.com/ticket/23159
  - https://github.com/django/django/pull/3013
replaced django 1.7rc1 with django 1.7rc2 in .travis.yml
docs: fixed minor typo
added test for SchemaDataBag.objects.create, refers #56
Nicer README
Updated VERSION to 1.3.0 final
schema mode: keys not defined in schema should work anyway
schema mode: removed unnecessary forced default value #57
simplification of deconstruct method, less is more
virtual date and datetime fields should not raise isoformat error
minor doc string improvement in HStoreDict
Update docs with command to create hstore on test db
Merge pull request #58 from leonsas/patch-1

Update docs with command to create hstore on test db
Merge pull request #4 from djangonauts/master

latest from upstream