Updated R novice lessons 00,01,02.
Updated R novice lessons 03 and 07, added 08.
Updated R novice lessons 02, 03, 07.
Merge pull request #1 from jainsley/gh-pages

Updates to R lessons to match the bootcamp goals.
Merge branch 'gh-pages' of github.com:swcarpentry/2014-05-12-oicr-toronto into gh-pages