Merge branches 'fix-editor-classes' and 'fix-stylesheets-dir' into tmp

* fix-editor-classes:
  Use "atom-text-editor" tag instead of "editor[-colors]" classes

* fix-stylesheets-dir:
  Rename "stylesheets/" directory to "styles/"

diff --cc index.less
index 324f8a50ccffe26f828f0bf59a36924f07a1c86d,ef211d67e5841cf9b72ad81e12a6222a1b7fdfc9..ce4401c2755835dba144ad5c81e16e828bcc6fdf
--- 1/index.less
--- 2/index.less
+++ b/index.less
@@@ -1,9 -1,11 +1,9 @@@
- @import 'syntax-variables';
+ @import './styles/syntax-variables';
  
 -.editor-colors {
 +:host, atom-text-editor {
    background-color: @syntax-background-color;
    color: @syntax-text-color;
 -}
  
 -.editor {
    .invisible-character {
      color: @syntax-invisible-character-color;
    }