v0.0.2

The name of the game here is consistency!

This pre-release is gearing up for a real release once (wait for it) this test framework actually has unit tests.
Yeah, yeah... Oof. I didn't follow TDD when making a framework for TDD. That changes from here on out!

Misc changes

• Call to pthread_cancel removed; docs updated to suggest returning
  when test_fail is called; this fixed a memory leak from the thread itself
• Updated documentation
• In general everything is just shinier :)

Build system changes

• Migrated to meson and ninja; good ol' make is still there, but not recommended
• Added Travis CI

Structs

• Renamed testfn to runner_t
• Added test_t::begin function pointer

Functions

• Renamed suite_init to suite_new
• Renamed suite_addtest to suite_add_test
• Renamed newtest to runner_new
• Added tdd_runner_del
• Renamed suite_stats to suite_get_stats
• Renamed suite_delstats to suite_stats_del
• Renamed test_start to test_timer_start
• Renamed test_done to test_timer_end
• Renamed test_t_init to tdd_test_new
• Renamed test_t_del to tdd_test_del
• Added test_fatal macro