Implement Get-AzueWebsiteLog -Tail
Add help for Get-AzureWebsiteLog -Tail
Add Moq to the website test
Add Get-AzureWebsiteLog -Tain unit tests
Verify that Dispose is called for the log stream
Add scenario tests for Get-AzureWebsiteLog
Apply code review
Add UrlEncode for Path/Message
Merge pull request #1170 from ogail/1157

Implement Get-AzureWebsiteLog -Tail cmdlet