[BC Break] `_toStoredKey()` is now using '.' separator instead of ':' (…

…Wisembly#35)

0.4.2 bump

- bumped 0.4.1

- 0.4.0

- build 0.3.4

Merge branch 'madglory-get-keys'

- tag version 0.3.2

- update version number in package.json. tagged 0.3.1

- updated version number in package. tagged 0.3.0

- tagged 0.2.5