haskell-unix-process-conduit: update to version 0.2.2.2
haskell-yesod-auth: update to version 1.2.5.0
haskell-timeplot: update to version 1.0.23
haskell-uuagc: update to version 0.9.50.2
git-annex: disable test suite to fix build

The "lock" test fails. Upstream knows this, and apparently the failure
is caused by a bug in the test suite -- not in the application code.
haskell-circle-packing: update to version 0.1.0.3
haskell-direct-sqlite: update to version 2.3.9
haskell-force-layout: update to version 0.2.0.1
haskell-ghc-vis: update to version 0.7.2.1
haskell-scotty: update to version 0.6.2
haskell-wl-pprint-text: update to version 1.1.0.1
haskell-xdot: update to version 0.2.4.2
haskell-yesod-auth: update to version 1.2.5.1
git-annex: fix build some more
Build x11vnc on linux
Change pmount download address and add platforms

The URL change is needed as alioth.debian.org is forcing HTTPS with CA we don't recognize.
mpv: ffmpeg defaults to latest now
libpng: upgrade apng patch .7 -> .8
nss: Fix patch download URL
Make xcode detection a bit more robust and configurable