More gremlin statements and explanatory text in test/data/test.txt

Also changed test timeout to 5s, as it is hard to predict how much
additional time Travis will require compared to my MacBook.
More tests in transcript test script.
Add test/data/Examples.txt script, attempting to follow gremlin-node README.md examples.

This is still work in progress. The goal is to provide working examples
of all of the examples shown in https://github.com/inolen/gremlin-node/blob/master/README.md#examples
More Transcript tests, including gremlindocs-transform.
Completed the transcript tests for gremlindocs-transform.
Added test/data/gremlindocs-filter transcript test.
Merge pull request #4 from jimlloyd/feature/gremlindocs-transform-and-filter-tests

Feature/gremlindocs transform and filter tests