EDIT

ref #7279 Update other maven wagon and scm extensions

ref #7279 Fix wagon web dav extension and wagon-maven-plugin version

ref #7279 Update wagon wb dav extension

ref #7279 Change maven phase for deleting update site

ref #7279 Delete update site before deploying a new build

ref #7268 Added confirm dialog to p2 update handler + i18n

ref #7268 Refactored p2 update related classes

• moved handle and util to store plugin
• re-wrote update handler to not relate on eclipse internal update site preferences

remove unused ProgressMonitor

avoid potential widget is disposed exception

ref #7215: minor