Bringing in up-to-date instructions for installing Firefox SQLite Manager plugin
Removed redundant lesson on functions.
Added R script to create html content for the full R intermediate bootcamp.
Add title to lessons

Thanks to @gdevenyi for raise this issue.

Close #333.
Merge pull request #335 from r-gaia-cs/title

Add title to lessons
Merge pull request #330 from gvwilson/enhancing-firefox-sqlite-plugin-instructions

Bringing in up-to-date instructions for installing Firefox SQLite Manager plugin
refactored git relational lesson into intermediate material
fixed typeos
another typeo
Merge pull request #334 from jdblischak/knit-bc

Knit R intermediate bootcamp
Adds simple Python script which checks the header of index.html for some common mistakes.
Checks whether file is actually a proper index.html.
reverted changes to novice git lesson
Merge pull request #339 from BillMills/master

Git relational structure refactor
Update TOC

This commit updates the table of contents to reflect the body text.

Removes
* Instructors and Sponsors
* Other Lesson Material

Adds
* Page Content
* Lesson Material
* Site Map

Also includes a minor formatting improvement, pushing the FAQ section on to a new line.
Implements comments of @r-gaia-cs. Adds check for template header. Breaks up some more long lines.
Reorders function to follow index.html. Adds checks for all categories.
Here's the correct index.html
Merge pull request #343 from timClicks/master

Update TOC
Using a bullet list for the table of contents