update required mac version to 10.9 in Info.plist
Merge pull request #187 from omalleypat/FixMacBuildCommands

update required mac version to 10.9 in Info.plist
Lua upgrade to version 5.2.3
Update sub-module: 3rd/LuaGlue
Merge pull request #190 from stef145g/master

Upgrade Lua to version 5.2.3 and update submodule 3rd/LuaGlue
Merge remote-tracking branch 'remotes/upstream/master' into develop