some fix on admin client
Merge branch 'coadmin' of github.com:voldemort/voldemort into coadmin
create unit test for coord-admin-client
Merge branch coadmin of github.com:voldemort/voldemort into cshaxu/coadmin
create coord-admin.sh
create coord-admin-tool-test
get, put and delete coordinator admin commands affect the config file but don't yet change the runtime.
Merge branch 'coadmin' of https://github.com/voldemort/voldemort into coadmin
WIP for the runtime update of coordinator fat clients
* Refactoring the CoordinatorProxyService initialize fat clients methods
* Fixing StoreClientConfigService and refactoring FileBasedStoreClientConfigService
* Fixing Coordinator unit tests
Adding Listener for store client config changes
* CoordinatorProxyService registers a listener when starting up
* FileBasedStoreClientConfigService invokes listener methods to reinitialize fat client factories on inserts/updates of store client configs
Adding comments to CoordinatorProxyService
fix unit test for coord-admin-client and coord-admin-tool
Merge branch 'coadmin' of github.com:voldemort/voldemort into coadmin
addressed comments
Addressed comments about the Coordinator Admin code, and fixed tests.