Fix build and improve Analytics

This PR is multi-purpose, to address both issues I reported as well as some build problems at once.

Fixes #7. Fixes #8.

UPDATE: Analytics' events expect non-float values to be Longs, not Integers, so the added change lets it parse those values correctly.

UPDATE: Add Analytics methods related to user privacy control: reset data and start/stop collection.

@RandomShaper Can you upgrade this one for 3.2.4 too?