Convert Vector<String> to Lua table, remove const char* type.

git-svn-id: http://urho3d.googlecode.com/svn/trunk@2575 3bd170d8-ddcf-f82c-f583-7a401ccf5608
Update Lua code.

git-svn-id: http://urho3d.googlecode.com/svn/trunk@2576 3bd170d8-ddcf-f82c-f583-7a401ccf5608