EAPI=5, ghc-7.6 and other goodies

Today I have unmasked ghc-7.6.1 in gentoo‘s haskell overlay. Quite a few of things is broken (like unbumped yet gtk2hs), but major things (like darcs) seem to work fine. Feel free to drop a line on #gentoo-haskell to get the thing fixed.

Some notes and events in the overlay:

• ghc-7.6.1 is available for all major arches we try to support
• a few ebuilds of overlay were converted to EAPI=5 to use subslot depends (see below)
• we’ve got working ghc-9999 ebuild with shared libraries by default! (see below)