add tests for cparametrizer.PyUnit
improve error handling and type safety
improve error handling and type safety; write tests
rename dictionary setters/getters
greatly simplify the test syntax by using assertRaises
bugfix: make python-bool working

apparently, one has two different bool types in cython, one is the
c++ version, the other one the python version

to have proper function signature checks (e.g., some_func(bool i))
one needs to use the python bool, however to plug something into
c++ one needs the c++-version

we solved this by renaming the python bool to python_bool and do
proper casting
finish polishing the interface/tests (type-safety and exception handling)
add a real-world test to the Parametrization Module

construct a noise cube, add two fake sources (2D-1D Gaussians),
create an appropriate mask cube and initialCatalog and
let the source parametrization run

TODO: one could possibly check, whether the individual parameters
match the expectation
add up-to-date cparametrizer.cpp as returned by cythonize.py
Merge branch 'master' of ssh://login.mpifr-bonn.mpg.de/homes/bwinkel/git_repos//SoFiA

Conflicts:
	src/parametrizer/cparametrizer.pyx