Fix: wrong dict-init led to partly empty community heatmaps
Fix: wrong dict-init led to partly empty community heatmaps

Because of the dependency in line 1115 ("""for index in self[ 'Communities' ][ name ][ 'index 2 obCoFreq dict' ].keys():"""), lines 2155 - 2156 had to be activated (un-commented, restoring the version before commit 8fd05e3f9ee4cd03558ce61e33590125a449fa61) to enable correct initalization of the "index2obCoFreq"-dict and thus enable proper iteration when drawing the communities heatmaps using the function "draw_community_expression_maps". 

Note that function "draw_expression_profiles" consistently yielded the complete community composition, because a different iteration scheme was used.
pygcluster/pyGCluster,pygcluster/pyGCluster