Release Olio version 7.0.0-alpha.2.
Release Olio version 7.0.0-alpha.2.

 * Tidy `.gitignore`. Closes #168.
 * Remove `/.dots` from `.gitignore`. Closes #167.
 * Caret pin Staccato to `11.0.0-alpha.2`. Closes #166.
 * Caret pin Keyify to `2.0.3`. Closes #165.

Closes #169.

bigeasy/olio,bigeasy/olio