Unique ID creation using snowflake testing.
UID test cases generated
updated readme with the UID content
scala version of UID service which retrives an unique id from twitter's snowflake server
Added a println to print the unique id.
return an exception to the callee, if the UID can't be generated.
Merge remote-tracking branch 'rt/master'
GunnySack now supports index, vclock, lastmodified, metadata,vTag.
Successfully completed store and fetch value's using secondary indexes