Log Message:
Updated lyx-qt and lyx-xforms to 1.3.5

This is mainly a bugfix release, with few notable user-visible
improvements. However, we would like to highlight two fixes in particular:

* Nested documents (with Insert>Include File...), which have been
  broken since LyX 1.2.0, should now work properly, including the
  case where the files are in different directories.

* It is now possible to compile LyX with gcc 3.4.