Merge pull request #1 from Shinmera/master

Getting changes from main branch
Misc cleanup (details ↓)

* convert: uses a function generator rather than writing the functions directly (except for °C ←→ °F conversion which is ugly)
* convert: exact ratios used where not exceeding 6 characters long (1 in ≡ 2.54 cm)
* google: rewrote function outputting distance in human terms
* shiritori: backquote oddness
Merge pull request #9 from isoraqathedh/master

Rewrite & Cleanup