moved utf-8 files to special folder for development usage

As Coder files for AkelPad have to be UTF-16 LE and GitHub is not
supporting it as an editable encoding then we use utf-8 files for
development and their copies in root folder as working copies of coder
syntax highlighting files for AkelPad.
Many new keywords and some reversions to Autocomplete

New keywords from
https://raw.github.com/ajaxorg/ace/master/lib/ace/mode/autohotkey_highlight_rules.js
Autocomplete $[] can be used as many time as you need - after inserting
this block you can switch to next place with Tab (default hotkey)