Added PHPUnit tests and Travis-CI trigger file.

Add: PHPUnit based tests added in /tests folder. Additionally the bootstrap.php specifies custom class loader because the phpunit cannot resolve the classes in the way
Composer resolves them.
Change: Refactored SmfApi/Server/api/index.php and SmfRestServer.php class. Isolated runtime functionality in method run(). This way new class instances can be created
without triggering Request parsing and action routing. This is done for the purpose of Unit testing.
Merge branch 'master' of github.com:pc-freak/smfapi