Revert "Fix a typo and add a unit test"

This reverts commit 3a8848d187266fe23e9ced3a01e3e26b2d77cbe1.

Conflicts:

	aggregator.py
Revert "Do not send NaN, +infinity, -infinity values"

This reverts commit fbf603e27f896022582156876c5b09f1b24a7378.

Conflicts:

	aggregator.py