oops, addition to last commit
Merge pull request #272 from MajBoredom/master

feature request from issue #241: AppData descriptor
fix install path
nlc (indent)
fix some validator issues (#241)
update to appstream 0.7 spec (#241)
update image format, too
cleanup
fix selection in replays
cleanup replay/savegame
fix compile
fix deleting replay by "DEL" key
wxString -> std::string
cleanup
fix failed wx assertion (can't insert into sorted list)
cleanup & update lsl
fix #32
update lsl (cleanup)
default to first options tab