update dependencies of ngCrossfilter

[gsemet]

Hello
I couldn't bower install ngCrossfilter 2.4.2. I had to change the following dependencies:

• "angular": "~1.3.4",
• "crossfilter": "~1.3.11",
• "lodash": "~3.6.0" (my project use lodash instead of underscore, I don't know if it is possible to tell bower "lodash > N" or "underscore > M".