Changes to allow past date selection, plus various other improvements/clean up#2

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atironati wants to merge 4 commits intojasisk:setDateTimefrom atironati:alex-past-date-selection-changes

+526-292

Commits on Feb 1, 2013

changes to allow past date selection, plus various other improvements and clean up
atironati
committed

Commits on Feb 5, 2013

switch to using Utils.pad, fix jingings
atironati
committed

Commits on Feb 6, 2013