Changes

• Updated bundled JavaScript libraries jQuery, jQuery UI, and Moment.js.
• Changed default value for Frontend::Avatar and using https when connecting gravatar.com.
• Added the setting to configure default search for responsible.
• Fixed encoding problems with URL parameter for PostMaster Filters and Generic Agents.
• Drafts can now be used again after the related screen had mandatory dynamic fields added.
• Fixed auto select the first entry of dynamic fields web service dropdown.
• Fixed responsible user id during appointment ticket creation. Thanks to Marc Pahnke (@MarcPahnke), Sector Nord AG. #325
• Fixed the package manager to install add-ons with dependencies again.
• Several CSS and user interface fixes.
• Added missing breadcrumb navigation to some admin modules.
• Fixed display of pending time selection. Thanks to Tim Püttmanns (@tipue-dev), maxence. PR#469