1. Add ale.setup and ale.setup.buffer for pure Lua configuration.
2. Update many global settings to use Booleans instead of numbers to
make types easiert to work with in Lua.
3. Radically reformat documentation and fix errors to make
documentation more usable for Neovim users.
* Initial attempt at an rpmlint linter.
* Add some basic documentation.
* Play with indentation in the test file.
* Another attempt to fix the rpmlint test.
* Hopefully this does it.
