added composer files.
updated install and execute instructions.
added vendor dir for phpunit to git ignored list.
goodbye PEAR, hello Composer.
unix hands!
reconfigured composer to install phpunit executables to bin directory.
added composer files for phing.
added vendor and bin dirs in the app root to git ignored list.
path correction to phing executable in code comments.
goodbye PEAR, hello Composer.
Merge pull request #465 from stopfstedt/composer-phpunit

Composerize phpunit
Merge branch 'master' into composer-phing

Conflicts:
	.gitignore
	.travis.yml
how many effin' times do we run phing?! three times.
borked merge from master, fixed.
Merge pull request #466 from stopfstedt/composer-phing

Composerize phing