gitedit.py: Remove all parameters to the save signal
gitedit.py: Remove all parameters to the save signal

In Gedit 3.14, all parameters to the GeditDocument saved signal were
removed.

https://wiki.gnome.org/Apps/Gedit/API-Changes

Signed-off-by: Darren Hart (VMware) <38f9eaa30910c40b06f5a60020b1222f2a953801@infradead.org>

dvhart/gedit-git-plugin