Remove naive verification of tuple size

This verification will not work.
Think of spaces or escaped ?
I think it's easier for users to parse the SQLException

Author: Moritz Schubotz <github@ckurs.de>

Closes #116 from physikerwelt/patch-1 and squashes the following commits:

69a3d2a [Moritz Schubotz] Remove associated test as well
b51b4f0 [Moritz Schubotz] Remove naive verification of tuple size
Remove space after comma for TupleXX.toString()

It is better to save some bytes when writing the output. Users can always overwrite to `toString()` if they want.

Author: Robert Metzger <rmetzger@apache.org>

Closes #118 from rmetzger/benchFixes and squashes the following commits:

cb8a251 [Robert Metzger] Remove space after comma for TupleXX.toString()
[FLINK-1038] added RemoteCollectorOutputFormat
[FLINK-1038] integrated feedback from rmetzger for RemoteCollectorOutputFormat
[FLINK-1038] remove false registry closing

Conflicts:
	flink-java/src/main/java/org/apache/flink/api/java/io/RemoteCollectorOutputFormat.java
[FLINK-1038] some amendments to the RemoteOutputCollectorFormat
* rethrowing exceptions
* toString() for RemoteOutputCollectorFormat (visible in web frontend)
* unique RMI IDs for different data sinks

Conflicts:
	flink-java/src/main/java/org/apache/flink/api/java/io/RemoteCollectorImpl.java
	flink-java/src/main/java/org/apache/flink/api/java/io/RemoteCollectorOutputFormat.java
[FLINK-1038] removed leading 'I' from interface names