Added backend support for filtering on multiple tags in query
Added max write size and write delay to properties file.  Also added method to increase write buffer size
Fixed the cache file hash to use actual query data
Fixed code to deal with null cache strings
Added script to check for errors in the KairosDB log file.
Added a scheduler to run background jobs. Added CacheFileCleaner which is a job that runs by default every Sunday and cleans up the cache files. Also renamed TsdbException to KairosDBException.
Fixed typo
Fixed null pointer in query
Merge branch 'develop' of github.com:proofpoint/kairosdb into develop
Metrics now list the actual hostname rather than  "server".
Merge branch 'develop' of ssh://github.com/proofpoint/kairosdb into develop
Updated release number.
UI now supports multiple tag values.