Update PACKAGES.md
Rename Qt 5 packages

Also exclude qt5-imageformats-git and qt5-webkit-git from the build.
The former fails for some error about documentation and the latter
fails to build because warnings are treated as errors (might be
related to some default options of gcc 4.8.0).
Ignore logs and binary packages
Fetch a working version of extra-cmake-modules

Latest extra-cmake-modules requires an unreleased CMake version
so we are forced to fetch the commit before that.
Update xwayland-git
Add hawaii-shell-weston-plugins-git