Merge pull request #11 from trontrytel/master

pull me
sync
Merge pull request #12 from trontrytel/master

rho_surf/rho in terminal velocity
Merge branch 'master' of github.com:slayoo/libcloudphxx
converting blk_1m from densities to mixing ratios
blk_2m transition from densities to mixing ratios
fixing blk_1m transition from densities to mixing ratios
lgrngn -> transition from densities to mixing ratios
a first draft of Python binding (tests/python); as of now only partly-working blk_1m::adj_cellwise()
updating CMake version requirement
wip on the Python bindings
Python bindings: test.py -> api_*.py
the Python bindings - it starts to work! :)
fixing options.hpp -> opts.hpp issue
hopefully fixing .so/.dylib issue
first tests of 1moment bulk microphysics using pytes, not sure if works (can'r run it)
opts_cr is now a normal function, not fxture function
addind a simple example of checking output of evap/cond
adding a pytest hello-world test example
Merge https://github.com/slayoo/libcloudphxx
merging my repo with Sylwester