Merge pull request #268 from kostrzewa/safer_bgq_compiler_flags

safety compiler flag for BG/Q
Wilson EM Plaquette action following 1205.6410
removed g_update_gauge_energy, as this part of the code appears to be really not time critical
removed also g_update_rectangle_energy
make gluon moment lambda usable with rectangle actions, effectively modifies c0 in spatial and temporal directions while leaving c1 as is