Small fix for guessing content type
Small naming changes
Get ViewResult to infer view from ActionContext, not PosInfos
Small typing fix for DispatchHandler
Force context to be parsed to controller during constructor

And perform injection there, so we are certain of dependencies
HttpConnectionWithTraces - for connecting to the more advanced remoting handler in ufront

(Deals with traces, error codes, etc)
Taking advantage of enum abstracts for the Date helpers.

May make merging back in with thx harder one day, but this is so much cleaner for now.
Create log directory if it doesn't exist
Create FileSession directory if it does not exist
Move SysUtil to ufront-mvc, use for the various "mkdir -p" functions we had lying around