added gitignores
replaced gargoyle by django waffle in requirements
replacing gargoyle with waffle in models
added missing dependency
updated setup with branch version
added waffle to test INSTALLED_APPS
replaced gargoyle by waffle in example settings
added Enrollment to django admin
added cache settings to testrunner
fixed import Flag
added cache settings to example settings
merge with upstream
replaced gargoyle by waffle in readme
updated version number
Revert "fixed import Flag"

This reverts commit c8d73a3057e8f8e7d29b4c6188e2a2ba925b9656.
added database name for testing
using dummy cache for example project
check if switch_key is valid before using it
removed nexus from requirements.txt (+1 squashed commit)
Squashed commits:
[2f51292] removed nexus from requirements.txt
removed nexus references from README