[test][strategies] fix compilation errors for pythagoras and haversine
unit tests (introduced by the changes in pull request #47)
[test][strategies] add compile time check for existence of default
strategy for projected point and cross track
[test][strategies] update copyright headers
Merge pull request #50 from mkaravel/feature/distance-default-strategy

[test][strategies] fix compilation errors for pythagoras and haversine unit tests
[geometry][test] Fix concept check failures.

The functions in arithmetic.hpp would check the concepts Point and ConstPoint
on Point2, instead of checking Point on Point1 and ConstPoint on Point2.

This would cause concept check failures when attempting to operate from
a ConstPoint.
Merge pull request #53 from smspillaz/geometry/10077

[geometry][test] Fix concept check failures.
Merge pull request #52 from mkaravel/feature/distance

[strategies][distance] change template parameters' names to reflect the objects they represent