Dynamically calculate number of columns required.

v0.0.4

Updated version numbers in bower and package json files

Updated main files in bower, updated version numbers.

v0.0.3

Updated main files in bower, updated version numbers.

Added d3.js dependency to package.json and updated README

v0.0.2

Merge branch 'master' of github.com:g1eb/calendar-heatmap

Initial public offering.

v0.0.1

Update README.md