Add initial batch job support for MongoChem.

Change-Id: I8f6e94033c35f0d931616c541f253d54190f4db0
Merge branch 'master' into batch-jobs

Conflicts:
	avogadro/molequeue/inputgenerator.h
	avogadro/molequeue/inputgeneratordialog.h
	avogadro/molequeue/molequeuewidget.h
	avogadro/qtgui/CMakeLists.txt

Change-Id: Ib582c14a3f07e4b9f99540e012b6b6c05e3c2068
Merge branch 'batch-jobs'

Change-Id: I2eb9db39f67729754aaf3ed3169bcfc62e57b42d