Now uses a qreal for progress instead of current and total
Also added a finished() signal because determining whether the queue is
finished should not be done by comparing a qreal with 1.0 as this is not
precise.
Rename PythonJobHelper ==> CalamaresPython::Helper.
Add QVariant to boost::python::object conversion functions.
Rename some constants in the libcalamares Python API.
Created a Boost.Python module interface in libcalamares.
Added a PythonJob wrapper and exposed it in the Python module.
Rename target calamareslib ==> calamares so in Python it's libcalamares.
Python-related classes in libcalamares that aren't exported as C++
symbols are now in a CalamaresPrivate namespace.
Import the libcalamares python module into every Python script before
running it.
Added Python error handling to PythonJobHelper.
Added some more testing code to dummypython module.
Now linking with -Wl,--no-undefined!
Moved find_package KF5 from the root CMakeLists.txt to the partitioning
module where it belongs. KF5 deps should be limited to plugins.
Lots of random fixage to make stuff link.
Removed CalamaresApplication reference from Settings.
Removed the use of AbstractPage, we don't need it right now.
