Road to 1.0

[whatisaphone]

You might be wondering why the version number jumped straight from 0.2 to 0.99. I'm treating 0.99 as a prerelease for 1.0. Now that DevinR528's proc macros have landed, I consider this library feature-complete. Since proc macros were a huge new feature, I want to let it simmer for a bit and see some use in the wild before committing to 1.0. Barring any catastrophes, I plan on releasing 1.0 with no further changes except for removing the macros which are currently deprecated.