The service to retriev MRB pie chart data now performs the query as case
insensitive so that the client doesn't have to worry about the case of
the parameter values.

Modified the client service call to use split the parameter type by
underscore and only use the last part of the parameter type to retrieve
the pie chart data.
Legend tweaks - Added percentage to legend and out of pie chart,
displayed percentage to 1 decimal spot and put in padding between legend
elements for readability.
The load filters are now also tied to the Contribution display pie
charts.
Fixed ContributionDisplay test.
Fixed merge conflicts with NAWQAAN_330
Further fixing of merge conflicts and tweaked the position of the right
pie charts legend placement.
Merge pull request #267 from mbucknell/NAWQAAN-329

Nawqaan 329