Merge pull request #796 from WindowsAzure/master

Leftover stuff that didn't get merged into dev.
Added tests for container name validation
added logic to make  a valid name when opening container
Verifing exception messages. Validating you can't create $logs container through sdk.
Changed approach - just rule out $logs as container name on creation.
refactoring boilerplate in validation
Added failing test for table query with prefix
Supporting prefix in queryTables
Merge branch 'dev' into release-0.7.6
Update changelog
Update version number
Update readme.md
Merge pull request #799 from WindowsAzure/release-0.7.6

Release 0.7.6
Updated mock recordings
Merge pull request #809 from christav/query-tables-prefix-792

Adding support for prefix in TableService.queryTables
Added happy path test case
Merge pull request #808 from christav/container-name-802

Allow $logs as a valid container name when opening blobs
Merge pull request #811 from WindowsAzure/master

Merge master back to dev
Fix for network configuration serialization for Subnets
Merge pull request #814 from tomconte/5b119bb2be600069582ab4ba1d220d867f8188e2

Fix for network configuration serialization for Subnets