Add missing license to docblocks.
Merge pull request #19 from isaacgrant/add-license-to-docblocks

Add missing license to docblocks.
Better promotion prefixing code.

Use array_map with an anonymous functions, aka lambdas, aka closures.

PHP 5.3 is the future... in 2009.
prepare for release of 0.1.4 | package party
Merge pull request #21 from isaacgrant/closures-are-cool

Better promotion prefixing code.
prepare for release of 0.1.5 | package party