filemode=false isn't necessary

It looks like it was actually a bug in vim's backupcopy functionality
that was flipping the filemode and not git. Remove filemode.
sub: Add my hack fix to LargeFile

LargeFile barfs in certain cases (documented in comments). Switch to my
repo.
local: Make msysgit and mintty work together
Update ack to 2.14
A better way to edit many files at once

Instead of editing each one, edit all in one command.
Also add a command to edit everything in the quickfix.
Do PEditArgs in batches

I'm getting some errors about too many arguments to PFIF and files
aren't checked out. This seems to help. For now, I don't want to do the wincmd o because it's leaving me in the perforce window instead of the code window.
Include integration history in PChangesThisFile

I'm working with lots of moved files, so I want to see where they came
from.
Move viminfo into cache directory

This resolves the .viminfo vs _viminfo filename difference on unix/win
and reduces homedir clutter.
Fix indentation of Autocommands section
sub: searchsavvy improve grep and listgrep

Use extended regex to support OR.

Handle disappearing buffers in listgrep.