CypherBuilder & MergeNode
Builder export
Use NEO4J_URI env var for default URI.
.ipynb_checkpoints in .gitignore
Better batch docs.
Merge branch 'release/2.0.1' into feature/multimerge
Tweak
Renamed to CypherSnip
Parameter keywords
Snip test coverage
CypherSnip comment
PropertySet update simplification
Merge branch 'release/2.0.1' into feature/snip
Cypherite comments
Fixed Cypher test for 1.8/1.9
Updated to latest Neo versions and switched to enterprise
Merge branch 'release/2.0.1' into feature/auth2

Conflicts:
	py2neo/core.py
All tests now passing for 2.2 with auth (not 100% coverage)