Updated dependecies Dynamic Expresso, Castle
Updated Castle, DynamicExpresso,removed JsonValue
Initial refactoring of the filesystem code/parser
v. 0.8.2

v. 0.8.2
Now file system pages assembly and markdown assembly is separated.
Support for extensibility. Refacor file system page code (not
completed).  Minor improvements. Added nuget packages xrc.Markdown,
xrc.FileSystemPages, ...