Adding canonical import path to lock in mixed-case imports (#23)

* ensure marvin is uppercase for imports

* ensure marvin is uppercase for imports

using x-protobuf as the default content-type

removing httprouter

updating readinglist for oauth to work

updating marvintest docs + adding SetServerContext, reflecting change…

…s in example

updating denial docs, making denial an error + supplying default denial

removing gizmo dep

grammar fix