finished handleget as a template for handleDel and handlePut; finished the run logic of ClientHandler; KVServer's get method checks for key's length now
Merge branch 'socketserver' into kvclienthandler
merged conflict
added comment for socketserver
modified KVSotre and added KVStore testcases
implemented server sided
KVCache.toXML() has been implemented; KVCacheTest.java added
KVStore's dumpToFIle and restoreFromFile correctly implemented
Merge branch 'serverbranch' into messagebranch
KVMessage now uses xml representation