Add RELEASE.md with release instructions. Closes #427
Update API docs link

Links to latest copy of Phoenix documentation.
Use generic link and remove "building docs"
Ensure we have relative paths and only touch files if they exist
Remove as: :pages from generated router
Missing `alias Poison, as: JSON`
typo s/imlementation/implementation/
Merge pull request #436 from ma2gedev/typo1

typo s/imlementation/implementation/
Merge pull request #435 from ma2gedev/missing_alias

Missing `alias Poison, as: JSON`
Type a fixo - plig -> plug
Merge pull request #438 from knewter/feature/fix_typo

Type a fixo - plig -> plug
Update view README
Merge pull request #440 from ma2gedev/update_view_readme

Update view README
Drop PUT in favor of PATCH for the resources route generation
Add back PUT/PATCH matching, but favor PATCH in docs
I believe the :path option is no longer necessary in scope declarations.
Merge pull request #444 from lancehalvorsen/remove-path-option-from-router-tests

I believe the :path option is no longer necessary in scope declarations.
Add put_view and support atom templates
Use :layout instead of :within and guarantee assigns are maps
Start moving more functions to Phoenix.Controller