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

Change-Id: I8bec35b6330652fc7be5d9f260df8ce27e3873c6
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=548295
Signed-off-by: Colin Ritchie <colin.ritchie@tasktop.com>
71 files changed