QA: Use PHP 5.4 syntax
Get rid of necessary `$self` parameter
Makes use of ability to rebind closures with bindTo()
http://de3.php.net/manual/de/closure.bindto.php
Requires PHP >= 5.4.0, which we can now rely on
See https://github.com/xp-framework/rfc/issues/279#issuecomment-38031636
Refactor: Only invoke $param->getName() once, store in temp. var
Only rebind closures once, inside constructor
Remove "self" parameter from newinstance closuremap definitions
Fix string declarations ending with multiple closing `}`s
Rename $self -> $this (left-over)
Remove "self" parameter from newinstance closuremap definitions
Merge pull request #9 from thekid/newinstance-closures-noself

Newinstance closures without "$self" parameter