Merge pull request #984 from WindowsAzure/master

merging latest updates from azure-content master
Merge pull request #1021 from WindowsAzure/master

Merge AUX 3.0
created three starter topics for Recovery Services
Merge pull request #1070 from tysonn/tn3-19

created three starter topics for Recovery Services
Merge pull request #1075 from WindowsAzure/master

Merging
Update .gitignore add Thumbs.db
Merge pull request #1080 from tdykstra/patch-1

Update .gitignore add Thumbs.db
Fixes to HTML tutorials per Glenn's advice
adding image reference
adding home entry in each left nav
Oops, I missed a fix in the previous checkin.
changed metacanonical
Merge pull request #1083 from tysonn/tn3-25a

changed metacanonical
changed file names
Merge pull request #1084 from tysonn/tn3-25a

changed file names
code fix for Mahout tutorial
updated all content to show new API
changed versions back to correct 5.0 / 4.5
Updated screenshots for setting up git publishing
Wrote backup tutorial, added screenshots