Fix message when over google limit
Bing & GoogleMaps now don't bother geo-coding if it already has the location geocoded
Image in treeview doesn't change when selected
Added viewport to database hence version bump to v18.104.22.168
Fix bug with locations not opening for places tab
Fix bug with locations for less detailed levels not showing if on more detailed tab
Fix tooltip zoom icon tooltip text
Move database code to database helper class
Added Option to lock zoom level
If a location isn't geocoded instead of ignoring it on timeline try at next level.
NB. Database is updated with viewport hence reset of old database.
Old database will be replaced.
Old database does not work with this version.