Improve readability of Bash scripts
Install PHPUnit phar if PHPUnit is not installed
Prevent YUI_COMPRESSOR_CHECK if no JS files present
Improve discovery of main plugin file
Physically move plugin dir to WordPress install; put symlink at original location
Remove -b and echo plugin location
Merge pull request #50 from xwp/feature/phpunit-install

Install PHPUnit if not installed; improve Bash readability