Target v1.2.2
Merge branch 'release/staging' into develop
Fix unit of measure for lastUpdated info extraction
Change stats format for multilayer map token request

See https://github.com/Vizzuality/Windshaft-cartodb/wiki/Redis-stats-format

Target 1.3.0
Fix path to grainstore module
Do not increment undefined mapview stat tags
Require latest grainstore and windshaft, for multilayer css fixes
Add test for CartoCSS error reporting on POST to layergroup
Properly report error from unsuccessful source table fetching

Report terse error to user, verbose to log
Merge branch 'release/staging'