fix #79
update travis to 1.7.5 [ci skip]
Merge branch 'master' of github.com:codemix/node-orientdb into 84-rid-is-valid
Merge branch '84-rid-is-valid' into 79-insert-errors
revert to 1.7.4
Merge pull request #86 from codemix/79-insert-errors

79 insert errors