added d3.v3.js
added linebars
added the javascript
added linebars with tests
added linebars to readme
added d3 to gruntfile - built a new release
fixed typos
Revert "fixed typos"

This reverts commit 6ca907b87599ec661152db58b3f91caaaeecbf7a.
Revert "added d3 to gruntfile - built a new release"

This reverts commit ac86861aaa8c1949c09e18993cbdd6fb1b83a798.
added d3 to gruntfile
Merge pull request #60 from mihi-tr/linebars

A linebar visualization for OpenSpending