TODO - 
Help appreciated! You'll need at least php 5.3!

* Implement the remaining commands in the CLI utility.
* Build some tests to ensure stability of existing functions.
** Use the SimpleChannelServer's package.xml as a starting point - should be able to build a complete channel for this package.
* Check for phar ini settings to ensure we can open & write phars or .tgzs --- phar.require_hash, 
