548295: update org.eclipse.mylyn.versions versions to 3.26

Change-Id: I624627f78d812e67e37c2d145c58c740fe1244fe
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=548295
Signed-off-by: Colin Ritchie <colin.ritchie@tasktop.com>
30 files changed