Remove part of job test till we re-emable new behavior
Using SignalR 2.0 #875, and adding PowerShell #877
Use FileSystemHelpers.Instance for FileSystem singleton.
quotes fix
WebJobs: Added a settings api and moved the issingleton setting in there.

The api is:

    jobs/continuous/{jobname}/settings (PUT/GET)
    jobs/triggered/{jobname}/settings (PUT/GET)

Fixes #983
Fix fxcop issue, missing static
Revert quotes fix
WebJobs: send stdout and stderr to the same file for Triggered jobs
Fixes #1018