Added long line highlighting
Long lines limit is configurable
Compilation window: C-c l goes to last error
Start tracking .mc-lists.el
Update submodules
Merge branch 'long-line-highlight' of https://github.com/r-darwish/emacs
Column marker: activate for all prog-modes
dabbrev-expand for all cursors in .mc-lists.el
c-modes fixes
Merge remote-tracking branch 'upstream/master'

Conflicts:
	.gitignore
	parts/036-long-lines.el
Merge branch 'master' into unstable