Reordeed symbols and increased size of diamond
Merge remote-tracking branch 'upstream/master' into jp728
Merge remote-tracking branch 'upstream/master' into jpTemp
-Fixed null dates displaying as "Invalid Date".
-Fixed null and invalid dates being part of the line connection on map.
Merge remote-tracking branch 'upstream/master' into jpTemp
Merge pull request #879 from jaypoulz/jp728

Reordered symbol markers for scatter/timeline and adjusted size of diamond.
Merge pull request #878 from mmcguinn/mm719

Null dates
Merge remote-tracking branch 'upstream/master' into jp592