Pierre-Guy Douyon

Add support for User autocmd

3

This can allow users to hook into the event that a buffer has no errors, possibly to generate tags files whenever a file passes syntax/style checks for example.

Possible behaviors when is present: - Don't modify the quickfix list - Override makeprg args and only use args supplied on the command line

- The quickfix list, while more consistent and easier to access than the location list, can only hold one list at a time, meaning Accio errors will probably be overwritten...

Potentially also add accio specific variables like b:accio_style_checker or b:accio_syntax_checker. This idea would need to be fleshed out a little more and will need to bake for a while.

Fix #4