Added option to provide arguments to the WebJobs script for triggered WebJobs
It is provided by a query string ?arguments={arguments}.
The arguments are then propagated to the script using command line arguments and also in an environment variable %WEBJOBS_COMMAND_ARGUMENTS%
Fixes #908
Do not use hash result for WebJobs if the directory doesn't exist (or any other failure).
Fixes #1186
Update to new kuduscript version.
Fixes #1192
Fixes Monaco url casing. Mark enabled extensions to have latest version.
Add node path only when necessary. Use the corresponding npm path.