Added Get/clear routine for IntegralAccumulator
Added missing status check in GetFirmwareVersion(). I don't expect this to affect anything.
JAVA
Renamed getRampRate to getCloseLoopRampRate in java to match the set routines in java, and match all routines in cpp.
Added GetFirmwareVersion to java to match cpp.
Added Get/clear routine for IntegralAccumulator
Retested all three routines in java.
Change-Id: I4ce9d9c87a379b9d4a76aae226e2072876218688