Improve measure tools

Measure result is available immediately after first click
Measure can use geodesic measurement, configured in GlobalOptions; fixes #8630
fix spaces encoded as '+' in URL params
Repair broken FeatureInfoHover with tooltip field
Merge pull request #51 from bstroebl/fixHoverInfo

Repair broken FeatureInfoHover with tooltip field
Merge pull request #50 from bstroebl/geodesicMeasurement

Improve measure tools
Merge pull request #49 from giohappy/master

Manage Google and Bing activation independently