fix file mode in windows for vagrant deploys
- in windows, all files are permissions 777.  git tries (incorrectly) to save these permissions.
- we tell, after the initial deploy, each git repository on vagrant to ignore file permissions
- apparently this git option can't be set as something inherited from the parent repo
- this suuuucks, so we work around it by finding all git repos in the shared folder and marking them as core.filemode=false
merge from master
Merge branch 'fix_file_mode_windows'