split `getSurface` function up for easier profiling
fixed most linting errors
Merge branch 'master' of https://github.com/switchface/helm into refactoring
split out render and cache modules
added sandbox to ignore list
function renaming
removed cairo, using sdl rendering
removed unused
changed render quality
moved engine out of root
added position transform to form render
Merge branch 'sdl_render' of github.com:palf/helm into sdl_render

Conflicts:
	src/FRP/Helm/RenderSDL.hs
updated README
fixed zoom level to 200%
Merge branch 'refactoring'

Conflicts:
	src/FRP/Helm.hs
Merge branch 'sdl_render'

Conflicts:
	src/FRP/Helm.hs
backup