Update git submodules

* Update org.eclipse.mylyn from branch 'master'
  to cf6ed4121971d1bb0e3097c4b1ac04b2ba5e995b
  - 537024: update Mylyn to httpclient 4.5.5 and httpcore 4.4.9
    (orrbit update to 2018-09)
    Change-Id: Ib3a953b77dfc07618817f035745492a2e67cba16
    Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=537024
    Signed-off-by: frank <eclipse@frank-becker.de>
1 file changed