v1.1.0

By shutcode and luochunneng in PR#14:

• Enhance step By()
• Add predicate Within()
• Fix client settings bug (errs chan is covered)
• Fix VertexByID crash caused by out of range, see Issue#3

By damienfamed75 well... myself:

• Fix unit tests in manager and quick
• Updated examples for godocs in grammes_test.go
• Updated example file in vertex-properties-example/
• Removed unused testing/ directory