added a reference for bowtie quadrilaterals

split header tests into their own file

use a bigger threshold in the determinant test

replaced the collinear test with a new one based on the hairline test that checks interior angles against official limits of 0.025 and 179.9

bump year in license

added ability to get other header elements than just the first one

add some basic versioning

(0) -100 -30 -10 -7 +7 +10 +30 tip

mercurial