feat(app-crypt/sbsigntool) update to latest upstream patches

This fixes a bug in sbsigntool that would cause newer UEFI firmware
images to fail the signature check of the booting binary.  This would
always show up on any firmware that supported multi-key signatures of
binaries.
Merge pull request #56 from gregkh/app-crypt

feat(app-crypt/sbsigntool) update to latest upstream patches
bump(app-crypt/efitools): sync with upstream
Merge pull request #57 from marineam/efitools

bump(app-crypt/efitools): sync with upstream
clean(sys-devel): Remove clang/llvm
Merge pull request #58 from marineam/noclang

clean(sys-devel): Remove clang/llvm
bump(sys-fs/aufs-util): sync with upstream
bump(net-misc/tlsdate): sync with upstream
Merge pull request #60 from philips/bump-aufs-utils

bump(sys-fs/aufs-util): sync with upstream
Merge pull request #61 from philips/add-tlsdate

bump(net-misc/tlsdate): sync with upstream
bump(sys-fs/aufs-headers): sync with upstream
Merge pull request #62 from marineam/aufs

bump(sys-fs/aufs-headers): sync with upstream
bump(dev-lang/python-exec): sync with upstream

Packages updated:
  dev-lang/python-exec
  dev-python/python-exec
  eclass
  profiles
Merge pull request #63 from marineam/python-exec

bump(dev-lang/python-exec): sync with upstream
fix(vim.eclass): Restore passing --with-tlib=curses to configure

Cross-compiling vim in our environment fails otherwise. The old version
of the eclass had this line but the new one does not. Re-add it to get
things working again. Should investigate this closer before the next
time the eclasses get synced up with Gentoo.
bump(app-editors/vim): sync with upstream

Might as well update since I'm already poking at vim a bit.

Packages updated:
  app-editors/vim
  app-editors/vim-core
Merge pull request #64 from marineam/vim

Vim build fix
bump(dev-lang/go): sync with upstream
Merge pull request #66 from philips/bump-go-1.1.2

bump(dev-lang/go): sync with upstream