Adding helpers for measure output. [#64247570]
Fix for toNumSigFigs.

[#64247570]
Make a neat string by number of digits past the decimal point, or by number of significant figures.

[#64247570]
Merge branch 'develop' into 20140124_ETH_StringHelpersForMeasures_64247570
Merge remote-tracking branch 'origin/20140124_ETH_StringHelpersForMeasures_64247570' into develop