565877: update org.eclipse.mylyn versions to 3.25.2

Change-Id: I4af285854debfb85b298a5662ef7bce9416204e4
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=565877
Signed-off-by: Frank Becker <eclipse@frank-becker.de>
8 files changed