corrected non required .init params
Fixed error in mixpanel.people.append documentation
Merge pull request #7 from kohiomobz/master

Fixed error in mixpanel.people.append documentation
Merge pull request #6 from drmarshall/master

corrected non-required .init params
WIP add $union to library
Flush test
Test for set after union
Build, add union to snippit
Fix async tests with minified lib