Upgrade assemblyscript (#61)

* Upgrade assemblyscript

* Upgrade assemblyscript

* Npm install

* Update examples

Bump lodash from 4.17.20 to 4.17.21 (#47)

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.20 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.20...4.17.21)

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proxy_set_buffer_status is not part of any ABI version, so remove it. (…

…#35)

* proxy_set_buffer_status is not part of any ABI version, so remove it.

If we were to leave it here, the @external label would need to change because
it is currently duplicated with the getter. (It is the only one like that.)

Release 0.1.5