Merge pull request #157 from tpkelly/gh-pages

Fix missing formatters page
Work in progress on using insight.Tooltip
'See the code' button working using d3-tip
Show the code for all three charts
Hiding the tooltip when navigating away from the front page.
Removed tooltip.js library
Fixed jshint complaint about use of 'this'
Merge pull request #206 from niksoper/gh-pages-dev-tooltip

Website visual testing changes
Merge pull request #208 from ScottLogic/gh-pages-dev

Website update for version 1.1.1
Using insight.min.js
Using cdnjs for d3-tip