[vim] Ignore F0401 warning in python-mode

Module import failures (F0401) when editing a Django app that runs in a virtual
environment.
[vim] bind semicolon to colon and avoid extra keystroke (shift) for commandline
[screen] run git fetch on common bundle master branch in vc profile
[vim] made semicolon work in visual mode + disable colon
[vim] disabled auto-save
[vim] solved some weirdness in yanking to system clipboard
[screen] changed placement of windows with in the split

Also make it only pull/fetch from repositories currently being worked on. This
will have to be updated as the project progress.