TXBridge quickstart execution steps are inaccurate

Execution steps for both wsat-jta-multi_hop and wsat-jta-multi_service quickstarts tells to start WildFly in one console and then execute the test with managed Arquillian container. Which is obviously wrong.
We shouldn't suggest to start the container manually, but only use the managed container.
Also, it might be good to not redirect output to the file, but instead print it directly and use egrep as showed in the current execution steps.