remove rails readme
fix dependencies for rails 4
fix routes for rails 4
remove button_to_function
fix simple form 3 radio buttons
remove link_to_function
fix rails dependency to 4.0.x, avoid turbolinks problems
this fixes some tests, not sure why
lock simple form to 3.0
fix preview buttons css
remove deprecated simple_form config
fix some deprecations with refactor
add missing :id parameter

answer deletion was impossible without this, probably should add a test
add missing permitted attributes (ORLY), should fix adding dependency
Merge pull request #4 from alepore/better_rails4

Add Rails 4 support