Inline documentation update

Converted @returns to @return (conform
http://manual.phpdoc.org/HTMLframesConverter/default/)
Converted konsolidate.net domain to konsolidate.nl
Merge branch 'master' of https://github.com/coffeemedia/konsolidate into coffeemedia-master

Conflicts:
	konsolidate.class.php
Restored PHP 5.2 compatibility for Konsolidate

Removed late static binding in favour of PHP 5.2 compatibility (solving
"parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM")