Bug 549441 - Rework usages of AbstractUIPlugin#imageDescriptorFromPlugin

Migrate org.example.mail from 1.5 to 1.8 as it requires bundles with 1.8

Change-Id: I9ade4138a012b97664a1fc1fb1ddd84264b17638
Signed-off-by: Alexander Fedorov <alexander.fedorov@arsysop.ru>
3 files changed