Use vendor provided interface for running saxon.
little code cleanup
"Remove unused import" quick fix for "Unused import" inspection

Closes #95
XQJ interface compatibility tests.
Introduce config builder.
Keep saxon in two versions - xqj and native.
Implementing #79 - Embedded BaseX.
Small enhancement to compatibility tests.
Tests cleanup.
Update copyright.
Remove unused import.
Merge pull request #96 from arnostv/unusedImportQuickFix

Unused import quick fix
Rename method.
Small refactoring.
Add query body to structure view.
Use the correct jar file.
Remove dead code.
Small refactoring.
Ignore test due to xqj driver issues with loading lang_en.txt.
support for live templates - defines group "xquery" and "XQUERY_CODE" context

Initial support, only generic "XQUERY_CODE" context is defined. It may be useful to define additional
context, e.g context for templates defined only within function declaration