Merge pull request #32 from ktf/gh-pages

Add a link to various development workflow models in github.
Back to CMSSW_6_2_0_pre8. CMSSW_7_0_0_pre0 does not have the tutorial branch.
Merge pull request #46 from ktf/gh-pages

Back to CMSSW_6_2_0_pre8. CMSSW_7_0_0_pre0 does not have the tutorial branch.
Updated using CERN/IT provided instructions.
Merge pull request #47 from ktf/gh-pages

Updated information for CERN/IT hosted repositories.
Larger font given the good feedback obtained by the tutorial page.
Do not use blockquote for normal text.
Add tutorial about topics.