Fixed not working BinData uuid printing

Fixed variable misspelling and colour variable missing.
Merge pull request #99 from isia/master

Fixed not working BinData uuid printing
Fix #100: aggregate() helper needs to passthrough "options" for 2.6
 - tested for compat with 2.2.7, 2.4.11, and 2.6.4
Fix #102: Add support for fluent aggregation explain() helper
Merge pull request #101 from stennie/issue-100

Fix #100: aggregate() helper needs to passthrough "options" for 2.6
Merge pull request #103 from stennie/issue-102

Fix #102: Add support for fluent aggregation explain() helper