FYI, I whipped up a small plugin that automatically update out-of-date project configuration, under our JBoss Tools Playground repo [1]. 

I'm not sure if it's completely safe to use. There's no preference to (de)activate it -yet-. The plugin is set to start on workspace startup for now, which isn't ideal, but if you deactivate it from Preferences > Startup and Shutdown and restart the workspace, it should be inactive. 
It's, most probably, sub-optimally implemented, but it worked on the small set of projects I tried.  

p2 site to install it from is at [2]. Feel free to try it and give some feedback. Then we can discuss what to do with it, wrt [3].
[1] https://github.com/jbosstools/jbosstools-playground/tree/master/plugins/org.jboss.tools.playground.maven.autoupdate
[2] http://download.jboss.org/jbosstools/builds/staging/jbosstools-playground_master/all/repo/
[3] https://bugs.eclipse.org/bugs/show_bug.cgi?id=335720


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