Updated awesome

  * rc.lua: use 'spawn' instead of 'spawn_with_shell';
  * run-once-pure.lua: compat with Lua 5.2.

Signed-off-by: Vladimir Lomov <lomov.vl@gmail.com>
Updated awesome

  * run-once-pure-t.lua: removed confusing comment;
  * run-once-pure.lua: removed confusing comment, added table to escape
    regex patterns.

Signed-off-by: Vladimir Lomov <lomov.vl@gmail.com>
Updated awesome

  * run-once-pure.lua: added information about script in comment.

Signed-off-by: Vladimir Lomov <lomov.vl@gmail.com>