Added more files to .gitignore file. [skip ci]
Merging svn.
Python path in run_mumble.sh file.
Merge remote-tracking branch 'origin/master' into dilawar

Conflicts:
	.exrc
	CMakeLists.txt
	python/moose/backend/graphviz.py
	python/moose/neuroml/config.py
	python/multiscale/core/mumbl.py
	python/multiscale/models/NeuroConstruct/two_cells/morphologies/SampleCell.java.ser.bak
	python/multiscale/models/NeuroConstruct/two_cells/two_cells.ncx.bak
	tests/python/mumbl/test_mumbl.py