* niknaks.arrays
- Added a new implementation of `findNextFree!(T)(T[], ref T)` which now returns a boolean and ref's the found value
- Fixes a bug whereby infite loop COULD occur
- The new function is also `@nogc`
* niknaks.arrays
- Added a unittest to test out the new method
* niknaks.arrays
- Removed now-completed TODO
* niknaks.arrays
- Cleaned up comments for unit tests
- Added missing unit test comments
* niknaks.arrays
- Fixed unittest to be nicer
* niknaks.arrays
- Fixed unittest to be nicer
* niknaks.arrays
- Added a unit test to test a missing case of an empty array