340986: add facility to remove (Hudson) build server from Builds list 

- added handler and menu to plugin.xml
- added confirmation dialog to DeleteBuildElementHandler as requested
  in earlier Gerrit review 23257
- updated copyrights
  
Change-Id: If418c1a3f11653bff5e53ac6993b1bd7a234ebde
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=340986
Signed-off-by: Maarten Meijer <mm105@xs4all.nl>
2 files changed