Add sequenceEqual to RxScala
Add take variants to RxScala
Add takeRight(takeLast) variants to RxScala
Add timeInterval to RxScala
Add delay variants to RxScala
Add using to RxScala
Add buffer variants to RxScala
Merge branch 'master' into rxscala-more

Conflicts:
	language-adaptors/rxjava-scala/src/examples/scala/rx/lang/scala/examples/RxScalaDemo.scala
Update CompletenessTest.scala for new operators
Eliminate compiler warnings
Revert createExampleBad and import scala.concurrent.duration.MILLISECONDS
Merge branch 'master' into rxscala-more

Conflicts:
	language-adaptors/rxjava-scala/src/test/scala/rx/lang/scala/CompletenessTest.scala
Merge pull request #1210 from zsxwing/rxscala-more

Add more operators to RxScala