Merge pull request #96 from Stavrakakis/master

Update how ZIP is created and handled
Merge branch 'upstream'
Tidy up formatters

Fixes the currency formatters so that currencies are formatted to 2dp.
Applies Nico's fix for Stacked series tooltips
Merge pull request #99 from tpkelly/master

Fixes for tooltips
ICS-76: fix to table keyselector
added another tweak to tooltipFunction after rebasing Tom's work