Add CustomData param
Merge remote-tracking branch 'origin' into customdata
Add customdata to powershell
Merge remote-tracking branch 'upstream/master' into customdata
Test updates
Make fixes for customdata to work with new-azurevm
Merge remote-tracking branch 'upstream/dev' into customdata
Merge with upstream
merge upstream
pass tests
Merge remote-tracking branch 'upstream/dev' into customdata
Merge remote-tracking branch 'upstream/dev' into customdata
revert to correct package version
Merge remote-tracking branch 'upstream/dev' into customdata
add rp registration entry
update rp registration entry

azurebatch -> microsoft.batch
remove validation on Set-AzureAvailabilitySet's input param
add [AllowNull] & [AllowEmptyString] attr. to AvailabilitySetName
Reduce the number of role instances to reduce test time
Add "AzureRTScenario" test category to distinguish with partner's scenario tests.