Add new version of XQuery semantic highlighting.
Minor syntax highlighter improvement.
XQuery syntax highlighting improvements.
Minor improvements.
Remove unused files.
Update XQuery syntax highlighting test case.
Fix lexer bug.
fix token test generator
Fix bug on token iteration.
Fix bug with array iteration.
Fix bugs in XQuery lexer.
Remove unused files.
Add XQuery tag completion.
Fix tag completion bug.
Improve handling of the xquery semantic token cache.
Merge pull request #1220 from wcandillon/master

XQuery syntax highlighting improvements
fix #1253 clearAnnotations uses wrong data structure for empty set.