s/chlidren/children/
Move renderers to a directory of their own

This should help understand the code structure more easily.
Move scanners to a directory of their own
Fix a typo in a comment
In PHPAnalyzer::add_renderers(), rename $child_path to $child_name as that's what it really is
Merge pull request #210 from ockham/preparatory-fixes

Preparatory fixes