cleaned up install instructions
not quite abstracted like I want, but it's a start
Update README.md

Update to remove some issues found following these instructions.
Update README.md
Merge branch 'master' of https://github.com/tmountjr/laravel-saml

Conflicts:
	README.md
Get base case to work with email as identifier.
fix variable
Update composer.json

Change package name
Merge pull request #1 from jeremyfrench/master

Changes from the base simplesamlphp library (which didn't work)