Shouldn't have slf4j-simple and log4j

Log4j is redundant.
Bind to sl4j 1.4.3 due to HBase

HBase is stuck on api:1.4.3.
Clean imports
Tests for Neo4J and TinkerGraph

Titan test fails with: Problem is:
```java.lang.RuntimeException: GraphFactory can only instantiate Graph implementations that have a constructor with a single Apache Commons Configuration argument. [com.thinkaurelius.titan.core.TitanFactory] does not seem to have one.```
wip! Titan tests

Connection works, but problems error: But may not be an issue?

13/07/16 10:19:02 ERROR : Error: isRDFModel
java.lang.NoSuchFieldError: isRDFModel
	at com.thinkaurelius.titan.graphdb.blueprints.TitanFeatures.getBaselineTitanFeatures(TitanFeatures.java:32)
	at com.thinkaurelius.titan.graphdb.blueprints.TitanFeatures.getFeatures(TitanFeatures.java:52)
	at com.thinkaurelius.titan.graphdb.database.StandardTitanGraph.getFeatures(StandardTitanGraph.java:103)
	at com.facebook.LinkBench.LinkStoreBlueprints.tryCommit(LinkStoreBlueprints.java:357)
	at com.facebook.LinkBench.LinkStoreBlueprints.addNode(LinkStoreBlueprints.java:285)
	at com.facebook.LinkBench.DummyLinkStore.addNode(DummyLinkStore.java:281)
	at com.facebook.LinkBench.GraphStore.bulkAddNodes(GraphStore.java:31)
	at com.facebook.LinkBench.NodeLoader.loadNodes(NodeLoader.java:184)
	at com.facebook.LinkBench.NodeLoader.genNode(NodeLoader.java:175)
	at com.facebook.LinkBench.NodeLoader.run(NodeLoader.java:139)
	at com.facebook.LinkBench.GraphStoreTestBase.serialLoadNodes(GraphStoreTestBase.java:262)
	at com.facebook.LinkBench.GraphStoreTestBase.testFullWorkload(GraphStoreTestBase.java:183)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at junit.framework.TestCase.runTest(TestCase.java:176)
	at junit.framework.TestCase.runBare(TestCase.java:141)
	at junit.framework.TestResult$1.protect(TestResult.java:122)
	at junit.framework.TestResult.runProtected(TestResult.java:142)
	at junit.framework.TestResult.run(TestResult.java:125)
	at junit.framework.TestCase.run(TestCase.java:129)
	at junit.framework.TestSuite.runTest(TestSuite.java:255)
	at junit.framework.TestSuite.run(TestSuite.java:250)
	at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:84)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:77)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:195)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:63)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
wip! OrientDB tests, in-memory and file

Connection works, but tests fail with:

13/07/16 10:25:41 INFO : 50000/50000 id1s loaded (100.0% complete) at 19984.01 id1s/sec avg. 250000 links loaded at 99920.06 links/sec avg.
13/07/16 10:25:41 INFO facebook.linkbench: ThreadID = 0 LOAD_LINK totalOps = 50000 totalErrors = 0 ops = 50000 sampleDuration = 1315ms samples = 10000 mean = 2.08 min = 0 25% = 1 50% = 1 75% = 1 90% = 2 95% = 2 99% = 39 max = 1442
13/07/16 10:25:41 INFO facebook.linkbench: CLOSED - Graph 'connection' count = 0
Error during cleanup:
java.lang.RuntimeException: Expected store to be initialized
	at com.facebook.LinkBench.DummyLinkStore.checkInitialized(DummyLinkStore.java:220)
	at com.facebook.LinkBench.DummyLinkStore.getLinkList(DummyLinkStore.java:182)