v2.0.4

Update version to 2.0.4

v2.0.3

Fixed some problems which seemed to happen in MacOS with the process substitution...

v2.0.2

Added a file tester and cleaned up the makefile a bit.

v2.0.1

Adding some minor testing features for Homebrew onboarding.

v2.0.0

First release of purr with code restructure. Might be less stable initially than 1.x.x; refactoring is a great way to introduce new glitches!