Fixing incorrect line reporting in Scintilla controls when line wrapping is on. (#9427)
* Fixing incorrect line reporting in Scintilla controls when line wrapping is on.
* Addressed review comments.
* Fixed move mouse to navigator object.
* Excel: use LresultFromObject and objectFromLResult to marshal cell range objects between NvDA and nvdaHelper inproc code, rather than letting Windows do it, as the previous implementation was failing on Office 2007 because CoInitialize was never called on the RPC worker thread.
* use null for wParam.
* Marshal Excel cell ranges by using the Excel cell address.
* Addressed review comments.
* Code cleanup.
* Addressed review feedback.
* Update what's new.