Bumped version numbers of dependencies

* Bumped the version numbers for most dependencies
* Jetty updated to 9.2.6.v20141205
* Resteasy updated to 3.0.10.Final
* Hibernate updated to 4.3.7.Final
* Hibernate validator updated to 4.3.1.Final (had to stay on 4.x as the newest Resteasy doesn't seem to work on 5.x)
* Did not update the h2 and postgres dependencies
Had to add this annotation to solve the following exception:
```
19:09:37.610 WARN  o.e.jetty.util.component.AbstractLifeCycle - FAILED org.eclipse.jetty.server.Server@691500ab: javax.persistence.PersistenceException: Unable to build entity manager factory
javax.persistence.PersistenceException: Unable to build entity manager factory
	at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:83) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
	at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:54) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:55) ~[hibernate-jpa-2.1-api-1.0.0.Final.jar:1.0.0.Final]
	at com.google.inject.persist.jpa.JpaPersistService.start(JpaPersistService.java:91) ~[guice-persist-3.0.jar:na]
	at com.google.inject.persist.PersistFilter.init(PersistFilter.java:77) ~[guice-persist-3.0.jar:na]
	at org.eclipse.jetty.servlet.FilterHolder.initialize(FilterHolder.java:138) ~[jetty-servlet-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:852) ~[jetty-servlet-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:298) ~[jetty-servlet-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741) ~[jetty-server-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) ~[jetty-util-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132) ~[jetty-util-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114) ~[jetty-util-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61) ~[jetty-server-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.server.handler.ScopedHandler.doStart(ScopedHandler.java:120) ~[jetty-server-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:782) ~[jetty-server-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741) ~[jetty-server-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) ~[jetty-util-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132) ~[jetty-util-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114) ~[jetty-util-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61) ~[jetty-server-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:163) ~[jetty-server-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) ~[jetty-util-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132) ~[jetty-util-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.server.Server.start(Server.java:387) ~[jetty-server-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114) ~[jetty-util-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61) ~[jetty-server-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.server.Server.doStart(Server.java:354) ~[jetty-server-9.2.6.v20141205.jar:9.2.6.v20141205]
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) ~[jetty-util-9.2.6.v20141205.jar:9.2.6.v20141205]
	at nl.tudelft.ewi.devhub.server.DevhubServer.startServer(DevhubServer.java:93) [classes/:na]
	at nl.tudelft.ewi.devhub.webtests.utils.WebTest.beforeClass(WebTest.java:51) [test-classes/:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_20]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_20]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_20]
	at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_20]
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47) [junit-4.11.jar:na]
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.11.jar:na]
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44) [junit-4.11.jar:na]
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24) [junit-4.11.jar:na]
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) [junit-4.11.jar:na]
	at org.junit.runners.ParentRunner.run(ParentRunner.java:309) [junit-4.11.jar:na]
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) [.cp/:na]
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) [.cp/:na]
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) [.cp/:na]
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) [.cp/:na]
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) [.cp/:na]
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) [.cp/:na]
Caused by: org.hibernate.HibernateException: Wrong column type in DEVHUB-TEST.PUBLIC.BUILD_RESULTS for column log. Found: clob, expected: varchar(255)
	at org.hibernate.mapping.Table.validateColumns(Table.java:372) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
	at org.hibernate.cfg.Configuration.validateSchema(Configuration.java:1338) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
	at org.hibernate.tool.hbm2ddl.SchemaValidator.validate(SchemaValidator.java:155) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
	at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:525) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1859) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:852) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:845) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
	at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:398) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:844) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
	at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:75) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
	... 45 common frames omitted

```