[scala] Add ClosureCleaner for Scala Lambdas
[docs] Fix paths to work with local builds

Local builds of the docs without a web server (e.g. ./build_docs.sh -p)
were not working. This commit fixes this.
[runtime] CaseClassSerializer correctly treated as stateful
[scala] Fix slow building of adjacency list in Scala PageRank
Rewrite TPC-H Q3 to use Long instead of Integer

Both Java and Scala version fixed.
[scala] Add equals() to TraversableTypeInfo
Removed TypeSerializerFactory from ScalaCsvInputFormat. The TypeSerializer is now serialized directly.
[FLINK-1270] [APIs] FS.get() supports relative paths

This closes #224
[FLINK-1095] [clients] Remove '-d' option in info from CliFrontend

This closes #238
[FLINK-1273] [runtime] Add Void type to basic types

Add optional test for external sorting of case classes.
Fix various warnings.
Upgraded HBase addon to HBase 0.98.x and new Tuple APIs
[FLINK-1290] Fix Optimizer to create plans when encountering incompatible partitionings.
[scala] [runtime] Add extra tests for sorting of case classes
[Docs] Just a typo in docs/index.md

This closes #242
[FLINK-1291] Remove default GC options from the shell scripts

This closes #240.
[FLINK-1154] Quickfix to kill TaskManagers in YARN mode.

This closes #233
[FLINK-984] Compiler tests for distinct(). Adopted the old code from @markus-h

The code originates from https://github.com/apache/incubator-flink/pull/61.
The pull request also contained code to add POJO support to the distinct() operator. This has already been implemented in earlier work
[Docs] Fix rendering issue and typo
[FLINK-1292] Allow for longer normalized keys when using composite keys

This closes #241
[Java API] [docs] Rephrase Javadoc of minBy/maxBy and link from min/max

This closes #244.