Changed some wording on the troubleshooting docs
Fixed some typos and grammar in intro and install
Updated the "Start > Overview" docs
Fixed mistaken idea about `default` layout
Added renderCollection events to docs
Merge branch 'master' of github.com:docpad/documentation into greduan
Update 07-troubleshoot.html.md
Merge branch 'master' of https://github.com/mrs...

...onord/documentation into greduan

My first command line pull request merge! :)
Fixed the new merge a bit...
Changed intro video and renamed `render` to `do...

...cuments` and `static` to `files`. If I'm going to do this I gotta do
it all over the place, otherwise it would be confusing.
Merge pull request #75 from docpad/greduan

Merge `greduan` branch into `master`