Improve ALE project style checking

* The project style linter now runs while you type.
* Now the scripts for checking the project require blank lines.
* Many style issues have been found and fixed.

ale_linters/rst/rstcheck.vim

@@ -8,6 +8,7 @@ function! ale_linters#rst#rstcheck#Handle(buffer, lines) abort
     let l:pattern = '\v^(.+):(\d*): \(([a-zA-Z]*)/\d*\) (.+)$'
     let l:dir = expand('#' . a:buffer . ':p:h')
     let l:output = []
+
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         call add(l:output, {
         \   'filename': ale#path#GetAbsPath(l:dir, l:match[1]),