Gone restricted again at intland:
www.intland.com/products/mercurialeclipse/overview/
www.intland.com/products/other-products/
Their codebeamer tracker and repo is stuck on 1.9.1:
www.javaforge.com/project/HGE
So i guess, bye bye javaforge.
Both code.google.com and bitbucket.org projects have code and are accepting issues.
code.google.com/a/eclipselabs.org/p/mercurialeclipse/
bitbucket.org/mercurialeclipse/main/overview
Of these, bitbucket seems to be more up to date.
They mention however the same URL for eclipse installer:
http://mercurialeclipse.eclipselabs.org.codespot.com/hg.wiki/update_site/stable