Remove notion of Fabric from README

Fabric is not a detail exposed to customer on management portal or API documentation. This term should not be used here.
Merge pull request #459 from ahmetalpbalkan/patch-1

[Suggestion] Remove notion of Fabric from README
Merge pull request #519 from WindowsAzure/dev

Merge dev into master
Merge pull request #527 from WindowsAzure/dev

Merge dev into master
Merge pull request #534 from WindowsAzure/dev

Update versions
Merge pull request #536 from WindowsAzure/dev

Update common
Merge pull request #538 from WindowsAzure/dev

Update common
Merge pull request #541 from WindowsAzure/dev

Update master from dev