Improvements from project usage

Hey, I've improved the plugin in following aspects:
* Generic artifact deployment: You can deploy now artifacts via their maven coordinates. Its no longer required that those artifacts must be a direct pom dependency. Therefore also removed the package lifecycle binding
* Improved exception handling/logging: Deployment error messages are shown when deploying
* Conditional execution: Execution of commands may fail in case of missing components on the JBoss AS. You can specify a model address for executing or not execution a certain command (e.g. execute this command only in case a certain subsystem exists)
* Redeploy using regex for finding the old artifact: You can redeploy a artifact which has a different name. Therefore you can specify a regex (e.g. artifactId.*). So you can overwrite the old version of an artifact with a new one.