#49 PSR-0 for autoloading (and works with composer)
Merge mnapoli/psr-0: PSR-0 for autoloading compatibility

PSR-0 for autoloading compatibility (and works with composer)

Relates to #49

Pheanstalk is now 100% compatible with PSR-0 for autoloading
compatibility.

The composer configuration is also updated.

Conflicts:
	classes/Pheanstalk/Pheanstalk.php
	composer.json
	tests/Pheanstalk/BugfixConnectionTest.php
	tests/Pheanstalk/ConnectionTest.php
	tests/Pheanstalk/FacadeConnectionTest.php