Adding group-based-policy module group

To group the statistics on all the group-based-policy projects.

Change-Id: Ic293544e7d83f63b4e958330d60fb93e28f64e2e
Optimize communication with Gerrit

Connection to Gerrit is established only once upon initialization
of the processor. The connection is used for a hard-coded number
of requests (20), once it is exceeded the connection is
re-established.

Closes bug 1381539

Change-Id: I5aa0129b56bd6c0217b338f771b4b68a7adf8db1
Merge "Adding group-based-policy module group"
Show the time of last data update

The time is shown in popup of About link.

Closes bug 1396105

Change-Id: Ie7585b962d6d674de6496b76cab66fb2346e1312
Show reviews on patches posted by robots

Also Stackalytics shows patches posted by robots, but doesn't
encount commits made by them. This fix should correct review report
and make it closer to Russell's

Closes bug 1259902

Change-Id: Ib2ab3713edd1ffa5fd24edf8f8ea694ff42a8947
Merge "Show reviews on patches posted by robots"
Merge "Show the time of last data update"
Process gerrit id case sensitively

Closes bug 1386124

Change-Id: I12c22f0b525d1b780a2a69c86aa4941c6fd21da4
Make date format validation stricter

Change-Id: Ib7903e0bb93bf5809f2314285ff631f2caf2bf32
Merge "Make date format validation stricter"