Redefining experimental. Less underscored dirs.

Merge unported / notporting / workbench
Consistent porting/notporting comments in workbench
I don't think we'll want to port runkit & outcontrol functions
Better explaination of testsuite's failure to find function
Credit phpjs.org and not my old blog
Move array to experimental
Disclaimer texts on generated pages
Fix ie8 bug

String.trim() is not supported in ie8, replaced with String.replace(/^\s+|\s+$/g, '')
Merge pull request #124 from masix/master

Fix ie8 bug. Thanks masix!
Merge pull request #113 from kvz/less-is-more

Less is more
Fix link in sponsor message
Use bundle exec to avoid version conflicts
Update site
Update site
Update strtotime.jsUpdate strtotime.js

I found strtotime.js parsed a lot of different date formats differently
to php-strtotime. Now the function should be much closer to its php
counterpart.