main.view: drop dash in "git-cola"

Signed-off-by: David Aguilar <davvid@gmail.com>
inotify: allow disabling inotify by setting `cola.inotify` false

Teach cola to disable inotify when `cola.inotify` is false.  e.g.

	git config --global cola.inotify false

Related-to: #165
Signed-off-by: David Aguilar <davvid@gmail.com>