Fixed `vendor/asset/fonts` loading

Added `depend_on_asset` tags to SCSS, according to
[sprockets_better_errors](https://github.com/schneems/sprockets_better_errors)
fixed engine root
added paths for precompile
fixed loading path
trying to figure out requirepath for fonts
trying to deal with dependencies...
trying to deal with dependencies...
Merge pull request #5 from seanpdoyle/master

Fixed `vendor/asset/fonts` loading