Added join
Fixed buglet in join binding.
Simplified types for groupByUntil, window, buffer, and empty to use Any and Nothing.
Implement some Android UI related operators

1. OperatorViewClick
2. OperatorEditTextInput
3. OperatorCompoundButtonInput
Fixing apparent encoding issue

Was causing grief with Git and Eclipse. Odd.
Git keeps modifying this file so committing it how it wants it.
Merge pull request #820 from benjchristensen/fix-CompositeSubscriptionAddRemovePerf

Git keeps modifying this file so committing it how it wants it.
Merge pull request #781 from Applied-Duality/join

Fixed buglet in join binding, simplified types
Merge pull request #783 from mironov-nsk/android-ui-operators

Implement some Android UI related operators