Merge branch 'master' into topic/jsonpath-uses-jsontree
Merge branch 'master' into topic/jsonpath-uses-jsontree
usen jsontree in jsonpath; tests path but are not worknig correctly
error + count filters
chain goroutine optimization
construct jsontrees from values
JsonTree.Len
jsonpath selectors Parent and Root
modularize lexer implementation
ignore most whitespace