Added `elemMatch` operator as well - `match` is too obscure #653
using() was added in 0.9. Not 0.8.
Added Django 1.7RC1 to the build process and excluded it from running on Python 2.6.
Include preliminary support for text indexes

To index a text field, prefix the field name with `$`, as in `$title`.
Merge pull request #680 from claymation/text-index-specs

Include preliminary support for text indexes
Fix some minor spelling and grammar in documentation
Merge pull request #684 from brianhelba/doc-spelling

Fix some minor spelling and grammar in documentation
Corrected Travis config syntax
Make requirement for PyMongo>=2.5 more consistent

Commit 7aa1f473785ed17cff280835285a69e401fd9b86 requires PyMongo >= v2.5.
This updates the requirements file to make this requirement explicit to
package managers.

Commit 29309dac9a926077962fc0778e5b2fbaf1d29cc2 removed some legacy
compatibility code that would run only with versions of PyMongo < 2.1. The
options 'is_slave' and 'slaves' for register_connection were only used in
this compatibility code, so they are removed too.
Enabling textSearch for build in Travis
Before_script fixed.
Travis problem with before_script
Replace before_script for before_install
Update .travis.yml
Added cache for apt in Travis
Merge pull request #689 from brianhelba/pymongo_2.5

Make requirement for PyMongo>=2.5 more consistent
Fixed requirements file to fit the new PyMongo>=2.7.1 requirement.
Fix StrictDict repr
Merge branch 'master' of github.com:MongoEngine/mongoengine
Revert change in .travis.yml: Delete apt cache