[Upg] Use Parsedown instead of PHP-Markdown
[Upg] Use PSR-0, 1 and 2 conventions
[Cln] Remove PHP-Markdown
[Upg] Pico now uses psr-0 for autoload
Merge pull request #4 from loranger/master

Add parsedown
Merge branch 'master' of https://github.com/dlazesz/Pico into dlazesz-master

Conflicts:
	lib/pico.php
Merge branch 'dlazesz-master' into parse_down
Merge branch 'parse_down'