Attempt tp eliminate 10 reads on Edge creation
Merge branch 'master' of github.com:yoshitomo0912/blueprints-ramcloud-graph into yoshi-master

Conflicts:
	src/main/java/com/tinkerpop/blueprints/impls/ramcloud/RamCloudIndex.java
Merge pull request #25 from y-higuchi/yoshi-master

Attempt to eliminate 10 reads on Edge creation