minor user agent tweak
Merge pull request #13 from denibertovic/develop

minor user agent tweak
Adding changelog info.
Adding disclaimer on changelog.
Fixing typo.
Fixing broken group adding docs.
update gitignore
add ability to use cache backends with StormpathManager
we can't run live tests on PRs

because github doesn't expose the secure env vars
another fix for running live tests on PRs

for real this time
Updating stormpath dependency to latest release.
Updating changelog.
Merge pull request #18 from denibertovic/cache

Adds cache backends option to StormpathManager
Updating changelog.
Moving the caching docs to the product guide.

Also cleaning the docs up slightly.
Cleaning up spacing.
Version bump.
Version bump.
Cleaning up cache interface.
Updating default value for STORMPATH_CACHE setting.