* Added new class QtCodeNavigator between QtCodeView and QtCodeFileList that handles active ids and navigation
* Pass all files as initially collapsed to code view and decide in QtCodeNavigator which ones show content
* Rewrote requesting of active snippet display to top down approach
* Display other locations focused when active location changes
* Show corresponding edges when navigating references
* fixed size policies of codeview elements to prevent the codeview from having a global scrollbar
* fixed crash in sorting of search results
* removed debug log when panning a codesnippet
* Show scope name at bottom looking like top one
* Refactored CodeSnippetParams out of CodeView and use them everywhere
* Fixed border radius clipping problem at bottom of file by defining a small padding
* Scroll to line number when inserting a scope