Updated all calls so when using verbose it returns valid JSON to the
callback.

Also updated the documentation and tests to reflect that.
Had the parameters in the asserts backwards.
Re-ordered the assertEquals parameters to be expected, then actual.
New build from Makefile
Merge branch 'master' of https://github.com/jeffxpx/mixpanel-as3 into v2.2.1_rc
Revert "Re-ordered the assertEquals parameters to be expected, then actual."

This reverts commit 2eb9e2661c6dd1b6e5a3d1402077cd0a22faf4bf.
Maintaining the (yes, nonstandard) order of calls in our asserts, in the interests of minimizing change.
Preserve existing return values when tracking is disabled
Documentation tweak
Minor style and whitespace tweaks
Whitespace
Whitespace
Whitespace
Version bump
Build and release notes