Add functions for createing geodesic lines
Rewrite the graticule control

This also introduces a new worldExtent option to the projection defaults.
Update examples to use projection default options

This also adds a graticule control to the polar-projections example.
Mention graticule related changes in release notes.
Fixing compiler issues
Additional release notes and documentation.
Simplify projection configuration
Fix typos
Fix clamping of lon and lat
Clearer release notes
Simplify projection configuration
Fixing typos
Merge pull request #1375 from ahocevar/graticule-fixes

Graticule control improvements