Add ApiHub support

Don't log full connection value for connection config errors

Default Content-Type to application/json for JSON responses

adding documentdb scripting

Adding metrics logging

Metadata file format changes (function.json)

Making ScriptHostManager error handling more robust (Keeping host alive)

Adding internal filewatch logic to efficiently reload functions when …

…changed

Moving to latest WebJobs SDK prerelease version

Moving to prerelease SDK version with function status logging support