SyntaxConstructClassifier.GetClassificationSpans filter out invisible spans
further optimize SyntaxConstructClassifier
add more tests for SourceCodeClassifier
optimize SyntaxConstructClassifier
replace lock with atom in SyntaxConstructClassifier
SyntaxConstructClassifier clears the location cache on ITextBuffer.Changed synchronously
Merge pull request #187 from vasily-kirichenko/colorizer-optimization2

Colorizer optimization
simple index implementation added
Merge remote-tracking branch 'upstream/master' into navigateto_simple_indexing
Merge pull request #191 from v2m/navigateto_simple_indexing

Simple indexing for NavigateTo
remove properties from Function category
add an ignored test for coloring double quoted symbols
fixed: SourceCodeClassifier crashes if FCS returns multi-line ranges
General cleanup
Merge pull request #193 from dungpa/cleanup

General cleanup
Merge pull request #192 from vasily-kirichenko/does-not-colorize-properties

Do not colorize properties