Enables custom attributes that can include content

[carl-berg]

Somewhat relates to #48

Solves a case where we want to use a custom verb (PATCH), but also include content. Could you take a look @mattiasnordqvist and see if you agree or would like to solve this some other way?

This PR however breaks backwards compatability of HttpRequestFactory. It could be easily rewritten to not break compatability (by keeping ResolveHttpMethod and maybe adding a ResolveIncludeContent or something like that), but that seems slightly clumsier.

[carl-berg]

Thinking about it, i guess a "breaking" change in HttpRequestFactory is not really a breaking change to a consumer of the package since it is instantiated only once and that's in an internal class, so i would probably think this is a non breaking change.

I need this fix soon, so i'm gonna try to create a pre-release myself (not sure if i can but i'll give it a try).

[carl-berg]

Nope, doesn't seem to be published automatically from the appveyor build, so i might need your help with that @mattiasnordqvist...

[mattiasnordqvist]

Sorry! vad har hänt här? :) Har inte loggat in på github på ett tag. Ring mig å berätta vetja!

[carl-berg]

Hehe, såg inte svaret förrän nu. Kort och gott ville vi få in funktionalitet för att göra en PATCH-request vilket gick utan modifikation, men behövde även kunna skicka med content vilket inte gick utan modifikation. Vill inte gärna ringa och störa, men slå du en signal när du har tid :-)

[mattiasnordqvist]

Det går inte att störa någon som inte är upptagen! :D Der är redan mergat eller? Vill du ha release å sånt?

[carl-berg]

Tack för release! Verkar funka bra!