Add Grunt config
Remove require js

Also:
- added the built d3-financial-components.js artifact for the examples.
- removed unused promise.js
Updated RSI to include over-buy and under-buy lines. Also corrected a few issues in the RSI indicator.
Merge branch 'master' of https://github.com/ScottLogic/d3-financial-components
Merge branch 'master' into build

Conflicts:
	examples/simple-example/js/main.js
	require.config.js
Add Grunt watch and uglify
Merge pull request #9 from tlsim/build

Add Grunt build. Remove Require