Election for Leif Geiger as Project Lead on Eclipse Marketplace Client

Leif has worked as a committer on the MPC project for over a year now, providing many good patches and feature improvements. He has already taken over the release process for the last couple of releases, and helped out with handling incoming bugs and most other day-to-day activities. So he will be able to take over seamlessly.

More importantly, I have worked with Leif for over 15 years and know him as one of the most capable software engineers and project managers I've had the honor of working with. I'm confident that I leave the project in the best hands with him.

A partial list of Leif's contributions:
- All releases since 1.7.4
- Bug 564580: made Java11 compatible
- aff3352 Bug 564580: reduce the properties sent to the server
- c2827af Bug 561865: Show remediation group only if there is no error at all.
- bf79ebf Bug 561865: Woraround to enable JRE check also for remediation operations.
- 0de70ab Bug 561865: Also stay on FeatureSelectionWizardPage on error even if there already is a ProfileChangeOperation.
- e04f683 Bug 561865: Reset change operation when selection is changed.
- e059d77 [RelEng] Prevent "Widget is disposed" on Jenkins
- 7804192 Merge "Use StandardCharsets."
- 4e10248 Bug 280443: Recalculate layout data for button
- fbb785a Bug 551901: Removed unnecessary import of org.eclipse.equinox.util, increased license feature to version 2.0.2
- 6369d5f Bug 551901 - Unspecified organization name displays "by unknown"
- 25507a8 Bug 547528: MPC build fails since ECF plugin was upgraded
- cccbb3d [RelEng] Use new httpclient update site
- 0d8e727 [RelEng] Prepare 1.7.7 bugfix release
- dc8eeba Bug 546507: Installation via Drag and Drop does only work on first page of the wizard
- 58a9de4 Bug 546141: Incompatible Entry notification is broken
- 8f7c227 511447: IllegalArgumentException below NewsViewer.createNoBrowserPart
- 6b8b802 538073: ExecutionException in AbstractMarketplaceWizardCommand.createConfiguration
- 1dd166f 527032: 3rd party caused SWTException below MarketplaceDropAdapter.findDropTarget
- aebc900 510448: SWTException below ImportFavoritesPage$2$1.call (thrown in Widget.checkWidget)
- 9a26dd1 489713: NoClassDefFoundError below DiscoveryItem.computeBrowserAvailable
- 336a746 485245: UI freeze in MarketplaceDropAdapter.hookRecursive (2.1s)