git config settings passing into vagrant & crlf

[emarsman]

Would be nice to have a way to pass some global git config options from host (windows) to vagrant machine (user name, ssh keys, email). Otherwise user is forced to redo a lot of git config for each vagrant machine.

Also, github for windows documentation has changed. Need to update documentation to include recommended git config settings, or put them in the project specific config. Specifically, core.autocrlf true.

Refs:

https://help.github.com/articles/dealing-with-line-endings/

http://stackoverflow.com/questions/26064638/crlf-issue-when-running-django-via-vagrant-on-windows-7

http://stackoverflow.com/questions/1510798/trying-to-fix-line-endings-with-git-filter-branch-but-having-no-luck/1511273#1511273