SGF-306 - Updated changelog.
SGF-308 - Updated changelog.
SGF-308 - Prepare 1.4.4.RELEASE (Dijkstra SR4).
SGF-308 - Release version 1.4.4.RELEASE (Dijkstra SR4).
SGF-308 - Prepare next development iteration.
SGF-308 - After release cleanups.
SGF-317 - Improved GemfireCache for Spring 4.1 compatibility.

Added putIfAbsent(…) to GemfireCache to make sure we can compile against Spring 4.1. Improved the implementation of get(Object, Class<T>) to adhere to the contract defined by the interface.