ScalaBusModTest.ignoreReply randomly failing

[galderz]

This test still fails, but with a different stacktrace to the one in #143. @Narigo, can you look into this as well?

java.lang.AssertionError: The timeout handler should have been evaluated later.
    at org.junit.Assert.fail(Assert.java:88)
    at org.vertx.testtools.VertxAssert.fail(VertxAssert.java:126)
    at org.vertx.scala.tests.mods.ScalaBusModTest$$anonfun$ignoreReply$1.apply(ScalaBusModTest.scala:150)
    at org.vertx.scala.tests.mods.ScalaBusModTest$$anonfun$ignoreReply$1.apply(ScalaBusModTest.scala:146)
    at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
    at org.vertx.scala.core.FunctionConverters$$anon$4.handle(FunctionConverters.scala:39)
    at org.vertx.java.core.eventbus.impl.DefaultEventBus$11.run(DefaultEventBus.java:943)
    at org.vertx.java.core.impl.DefaultContext$3.run(DefaultContext.java:175)
    at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:370)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:353)
    at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
    at java.lang.Thread.run(Thread.java:744)