If you are having trouble with Eclipse saying "m2e 0.13.0" cannot be found (preventing JBoss Maven Integrations from being installed) you should add all features from these two repositories first to fix the problem, then go back and install what you need from JBoss Tools:
https://repository.sonatype.org/content/sites/forge-sites/m2e/0.13.0/N/0.13.0.201103291237/
https://repository.sonatype.org/content/sites/forge-sites/m2eclipse-wtp/0.13.0/N/0.13.0.201103231111/
Hope this helps.
Lincoln