NEW: added logger to policy results
NEW: module to calculate statistics from RSS information
FIX: removed legacy methods ( from former RSSCache )
FIX: removed option to disable logging in database
FIX: added logger for policies and new table for Policies Logs
fIX: removed unused code
FIX: more verbose comment
FIX: cosmetic change
FIX: fixed broken dirac-rss-set-token script
FIX: added ResourceManagementDB to the script
Merge pull request #1421 from ubeda/NEW_v6r8_Statistics

[v6r8]FIX: dirac-rss-set-token, NEW: Statistics module