Implemented `distinct` and `distinctUntilChanged` variants using a comparator#380

Merged

benjchristensen merged 6 commits intoReactiveX:masterfrom jmhofer:distinct-with-comparator

Sep 13, 2013

+330-31

Commits on Sep 13, 2013

initial introduction of an equality comparator into distinct implementation, still needs test
Joachim Hofer
committed
added test against comparator usage
Joachim Hofer
committed
added both new variants to observable
Joachim Hofer
committed
added comparator versions of distinct operation, too
Joachim Hofer
committed
added tests against multiple subscriptions, just to be on the safe side
Joachim Hofer
committed
simplified error handling as this is already done on the outside
Joachim Hofer
committed