Update git submodules

* Update org.eclipse.mylyn from branch 'master'
  to 6771e74f9bb5517ba5e323923b08bde283ff5738
  - 564932: fix jenkins build errors in nightly jobs
    
    Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=564932
    
    Change-Id: I129d572c95d016c2ffa894bf6ce145883ee3b4f3
    Signed-off-by: Frank Becker <eclipse@frank-becker.de>
    
1 file changed