Using fractional changes (cf percentage) on chart axis

The 'p' axis type in d3 expects the value to be a fraction (i.e. 0<=1)
rather than 0-100%.
Removing unneccessary axis label
Merge branch 'bootstrap-redux' of https://github.com/uamuzibora/dashboard into bootstrap-redux
Adding age & gender pie chart
Slight changes to multibar setup
Adding initial version of Clinical tab
Retabbing FTW
Adding charts to Clinical tab
Merge branch 'bootstrap-redux' of https://github.com/uamuzibora/dashboard into bootstrap-redux
Finishing charts for Clinical tab