remove reg files no longer needed after install
update installer to work on Lua 5.2
Merge pull request #156 from Tieske/Win_installer_5v2

update windows installer to work on Lua 5.2
Merge pull request #157 from Tieske/cleanup_reg_files

Remove reg files no longer needed after install (Windows)
Merge remote-tracking branch 'upstream/master' into linux-multiarch
changed multiarch detection and site_config variables