update d3.js and fix a nonsensical test it broke
Added text option for number-display
Number-display - Hide entries if the value is 0
Added Pluralization
Added .html({singular:'',plural:'',zero:''} for number-display
Added .html function. Issue #527 and #619
Corrected number.html accordingly
Replaced == with === and added getter functions
Added test-specs
Merge branch 'master' of https://github.com/siddharthg/dc.js