* pkgs: refactor needless quoting of homepage meta attribute
A lot of packages are needlessly quoting the homepage meta attribute
(about 1400, 22%), this commit refactors all of those instances.
* pkgs: Fixing some links that were wrongfully unquoted in the previous
commit
* Fixed some instances
Pyside requires several tools that do not provide Python modules. They
therefore do not need to be build Python-version dependent and so we
move them out of `python-packages.nix`.
Furthermore, shiboken needs libxml2 and libxslt libraries but not their
Python bindings.
I had to update all the pyside programs, or freecad failed to build. I picked
the versions advertised in http://qt-project.org/wiki/PySideDownloads . The
rest I took for github latest releases.
* Remove package name
* Start with upper case letter
* Remove trailing period
Also reword some descriptions and move some long descriptions to
longDescription.
I'm not touching generated packages.
