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

Change-Id: Ief399256bc096b52da8328641e292b6e834bf561
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=548295
Signed-off-by: Colin Ritchie <colin.ritchie@tasktop.com>
22 files changed