Working in push android demo, I found 2 problems

1) We do not have a way to change the login name parameter sent to the server and on push the parameter name is different from what we have in api
- I changed this in code to test it [2]

2) The Authentication API today is only to use in Pipeline
- I moved it to the HttpRestProvider class which is also used by the Pipeline [3]

Summers and I worked on it yesterday night, but still could not find the problem.

Apparently it logs in successful[y4], but when trying to register, the server responds: "No authentication challenges found"

The same authentication works perfectly in TODO but not in server push. This is blocking me.

[1] http://aerogear-dev.1069024.n5.nabble.com/aerogear-dev-Push-Authentication-tt3382.html
[2] https://github.com/danielpassos/aerogear-android/commit/8f867f8d4a43eb47873a5eecd708780a062620c3
[3] https://github.com/danielpassos/aerogear-android/commit/4636e51a4bd2590599c01e3a01ad472434b275a7
[4] http://cl.ly/image/2q442B0N0Q40