Improve the formatting, therefore the readability, of the test files. And let Perl count the tests instead of me.
Add a test file for RT ticket 36532.
RT ticket 77710: better names "precise" and "height" for parameters. And the deprecated "iterate" is nearly
eliminated. TODO: eliminate also "altitude".
Also: expand tabs to space in various source files.
Apply patch from RT ticket 36532. Thank you Michael.