3.4/develop

Fully embraced the composer way of doing things, added requirement of PHP 5.4+, and added some fancy new 5.4 stuff.
@shadowhand, I am thinking for the new comers.

We, the contributors, do NOT need kohana/kohana. We have all kinds of hacks already in our bootstraps.

We can always add on the top of the modules list some comments that these modules should be installed with composer.