Adding Get-AzureWebsiteJob scenario tests
Add Get-AzureWebsiteJobHistory tests
Create a web job wrapper to support pipeline
Apply code review
rename wrapper class name and make all properties be settable
Merge pull request #2299 from ogail/scenario

Adding scenario tests
Merge branch 'release-0.7.3' into PipeLineFix
update scenario test caused by property name change
Merge pull request #2301 from yugangw-msft/PipeLineFix

Support PowerShell pipeline for web job scenario
Merge branch 'release-0.7.3' of https://github.com/WindowsAzure/azure-sdk-tools.git into release-0.7.3
Fixed signing issue.