Fixed #172.
Fixed #179
Added findbugs, after much messing around. Still need to fine tune plugin function.
Fixed #188. Made one change as recommended by findbugs and excluded three false positives.
Fixed #185. Change MutableEntry.getValue() to Entry.getVlaue() in JavaDoc which is more correct.
Fixed #175. Removed IllegalStateException on CacheManager.destroyCache(String cacheName)