This closes #280

This closes #275

[streaming] Updated connector type handling to suport generic classes by GenericSourceFunction interface

[scala] [streaming] Changed return types to implicits

[scala] [streaming] added initial ConnectedDataStream support (no windowing,batching) for the scala api

[scala] [streaming] updated example with scala delta helper usage

Conflicts:
	flink-scala/src/main/scala/org/apache/flink/api/scala/streaming/DataStream.scala

[scala] [streaming] Finished scala StreamExecutionEnvrionment functionality + DataStream sinks + docs

Removed Disclaimer file
Eliminated unnecessary incubating substrings
Bumped version to 0.9-SNAPSHOT

[streaming] Make windowed data stream aware of time based trigger/eviction in tumbling window situations.

[streaming] Changed TimeEvictionPolicy to keep timestamps in the buffer instead of data-items

Excluded the scala example jars
Excluded the example source code subdirectories

This closes #274

Let the submitJobAndWait method check continuously whether the job manager is still alive. Terminate waiting for a response in case of a job manager outage.

Fix race condition in ExecutionGraph which made the job finish before all vertices have called the finalizeOnMaster method.

Use Akka version 2.2.1 for hadoop version 2.0.0-alpha to resolve dependency conflicts. Adjust code to comply to respective Akka API. Remove obsolete TODO.