added completion helper methods for group / artifact / version to make it easier to make smart UIs that help complete group/artifact/version
Small layout tweaks to get the button rounding correct on the OSGi Bundles views.
made the startup of the MavenIndexer asynchronous so that the indices can be downloaded after the web app starts up
only register the mbean once the indices are downloaded (so in hawtio we can delay showing the UI stuff until the service is ready)
add the MavenIndexer in by default to the so we can play with it in the sample hawtio-web
make sure that the web app starts up first; then add the maven indexer later on
fix the sample war - it needs spring-web and align the versions so we don't get multiple versions of things