Version bump to beta3
Add instructions for creating new geography templates
Change URL for geo state installation in Example to new files.michaelstepner.com
Add demo files to be used as templates for people creating new geographies
Change error message when stateoutline() is specified but state coordinates file isn't present, to be more intuitive.
Update geo ado-files to match format of demo file (mostly, moving save graph code to its own subprogram). Also update date.
Fix bug with proportional colouring when there are no obs in some bins. Previously, it failed and gave map coloured all black.
Minor edits to the maptile help files.
Merge branch 'release/v0.70beta3'