Added Cache Test
Merge pull request #33 from fjtorres/master

Changes to use version 1.2.1 of the library disklrucache
Attempt to fix cache test and renamed test package
Only run cache tests if the cache is available
Only use internal cache
Attempt to fix wrong dep
Updated README version
Updated README version
Support for existing query params in path

If a path already contains a query params i.e. @GET(“/user?a=1”) and
additional params are included using @QueryParam then append the &
correctly.
Merge pull request #34 from justinelsberry/master

Support for existing query params in path
Fixes #APP_ANDROID_REST-3
Bumped up to latest sdk tools 19.0.3
Merge pull request #35 from danramirez/master

Fixes #APP_ANDROID_REST-3