CM: Add general development contributors to list

Patch set 2  : Add blunden and maniac103
Patch set 3  : Add djMesias
Patch set 4  : Update tilal6991
Patch set 5  : Add N4 and N10 maintainers
Patch set 6  : Add burnsra to N7 and jruesga to General

Change-Id: I0ed51d01868b0dab6e24da75746574776b74aa92