Initial work on redis TS storage
add enum34 dep
basic test for incr + get
handle missing keys
Describe redis storage structure
Tweak rollups to better represent needs
Merge branch 'master' into tsdb-redis
Restrict tag counts to be slightly less taxing on the database
Keep all tags relative to 1-week in group widgets
Merge branch 'master' into tsdb-redis
Move TSDB backend into proper abstraction
Remove project attribute from data API
Sanity check on get_from_cache with pk
Revert "Sanity check on get_from_cache with pk"

This reverts commit 2596f56999677816ddd670ac915764c9dd699b94.
Correct get_unique_tags response
Re-add assert, treat it like other failures
Generate base64 encoded UUIDs rather than hex values
Move Riak key generation into Sentry
Note generate_id change
Update locale