add composer.json
add autoloading to composer.json
Update install information

Remove broken PEAR install guide, add composer install guide
Merge pull request #5 from mfairchild365/composer

Add Composer support
Implement JASIG style attribute release in Protocol 2 and client
Support disabling automatic redirect after ticket validation

This adds a property to the client so implementations can handle their
own redirection after ticket validation.
Merge pull request #7 from kabel/master

Improve CAS API - Attribute Release and Optional Redirect
Fix PHP "return by reference" notice

Must return a variable and not result of expression.
Merge pull request #8 from kabel/master

Fix PHP "return by reference" notice
composer requires that the name be lowercase