Merge branch 'custommapreduce'
Fix test directory for build server
Maybe try the /labels option so it's easier to see if the tests get stuck what's going on
The 'LocalAzureTableStore' test type will now use an environment variable to get the connection string if one is set
Merge branch 'master' into custommapreduce
Batch together AppendValue results. GetValue won't return them until Commit() is called, so the tests are failing right now
Fix the backing store tests so they properly commit their data
Ensure that the data is committed before running or updating a query
When we batch operations, ensure that they get committed anyway after a short (20s) delay.