Merge branch 'master' of git://scm.dev.nokia.troll.no/qt/qtbase-staging

* 'master' of git://scm.dev.nokia.troll.no/qt/qtbase-staging:
  Compile IPC tests.
  Always call XInitThreads.
  Remove redundant #ifdef's from benchmarks
  Improve coding style of qdatastream test
  Don't use Qt3Support in arthur test suite.
  Remove Qt3Support code from QMenuBar autotest
  Remove Qt3Support code from QSplitter autotest
  Remove Qt3Support code from QSharedPointer autotest
  Remove Qt3Support code from QComboBox autotest
  Remove Qt3Support test code from accessibility autotest
  tests: allow unstable tests to be marked with CONFIG+=insignificant_test