TDI-29337:include the plugin.xml for the third party jar.
Feature TDI-29250 added:Wizards should be able to reuse an existing
repository context instead of simply ask to create a new one each time.
Merge branch 'maintenance/5.6'
TUP-2141 : Enhance Palette Settings
TDI-29989 : if the URL contains %20， we should replace it with space