integration test now uses profiles
created profile for wally cluster and local execution
adjusted several logs from info to debug
fix issue #22
improved buffer queue to channel binding in producer and consumer

fixed dependency issue in aura-tests
Merge pull request #23 from citlab/fix-inputgate-connection

fix issue #22
introduced config for memory, specific travis profile, introduced user profile
Merge pull request #24 from citlab/travis-config

Travis config
Add prefix I to all interfaces
Merge branch 'develop' of github.com:citlab/AURA into develop

Conflicts:
	aura-client/src/main/java/de/tuberlin/aura/client/api/AuraClient.java
	aura-core/src/main/java/de/tuberlin/aura/core/iosystem/DataReader.java
	aura-core/src/main/java/de/tuberlin/aura/core/iosystem/SerializationHandler.java
	aura-examples/src/main/java/de/tuberlin/aura/demo/examples/OperatorTest.java
	aura-tm/src/main/java/de/tuberlin/aura/taskmanager/TaskManager.java
	aura-wm/src/main/java/de/tuberlin/aura/workloadmanager/TopologyDeployer.java
	aura-wm/src/main/java/de/tuberlin/aura/workloadmanager/WorkloadManager.java
	aura-wm/src/main/java/de/tuberlin/aura/workloadmanager/ZooKeeperTaskManagerWatcher.java
added memory settings to wally config; removed unnecessary print from multiQueryTest
move the operator classes to toplevel
Added MultiOutputGateTest.java in examples for testing multiple output gates
extended DataProducer.done with outputGateIndex argument and adapted all callers
Removed constructor arguments from AbstractInvokable and use instead setter injection
Minor bugfixes
Extended MultiOutputGateTest - Source is able to be consumed from multiple tasks
Implemented first prototype of Multi-Output-Tasks. Tasks with multiple Output-Gates
fixed integration tests for local setup. introduced profile.default.conf as default profile used.
complete rewrite of the operator framework, added HashJoin, Union, Sort
Merge branch 'develop' of github.com:citlab/AURA into develop
optimized imports
Updated comments in profile.default.conf