Removed webwork2 submodule
Addign a .gitignore file
Update instructions to guide users to clone webwork2 and pg repositories
Changed file permissions on Vagrantfile.
removing submodules
Merge commit '245ac617f2b01ee7e8f7fe82af089c74d2c3c2fe'

Conflicts:
	.gitignore
	README.md
updated read me
Update README.md
Merge pull request #1 from whytheplatypus/master

updates