Add support for Perl files (pm)
Add tests for Perl
Add Perl example to README file
Fix Perl comments style
Merge branch 'antonfisher-perl-support' into dev

Perl support
Add perl comment-style.
Use optional apidoc.json for primary configuration over package.json.
Add basic template configuration options.
Enable markdown for all description fields.
Add simple CSS3 preloader.
Bump version 0.6.0