Remove configuration of server "bender"

Reason: HDD is faulty and therefore not used anymore.
.sh configuration are now node specific too

HBase Heapsize was set too high on pinocchio and haddock.
There are now two separate merge scripts for .sh and .xml configuration files.
The upload_configurations.sh script is a combined and simplified version of the previously separate upload scripts.
Slightly updated description in scripts too.
Reduce Hadoop memory usage on Haddock and Pinocchio

These nodes have now 8 GB instead of 12 GB reserved for running tasks.
As of now, the extra memory should be used by HBase Regionserver.
HBase configuration tuning

Added more handlers to improve max concurrent requests.
Increase threshold of max. StoreFiles and max. MemStore size before blocking store/region starts.
Trimmed HBase Heapsize on nodes Haddock and Pinocchio from 10 GB down to 4 GB.
Node Leela still has a HBase Heapsize of 10 GB.
Preparing to run pipeline shuffle fully in parallel.
Merge shards, and compute breakpoints.