Merge pull request #1 from christopherobin/master

First version
Merge pull request #2 from christopherobin/master

Added missing component dependency
v0.0.2: crossfilter now has a component.json file
component require is not quite the same as node require =\
Merge pull request #3 from Wizcorp/develop

v0.0.2
v0.0.3: Fixed an issue where you could not filter for false values.