Merge pull request #1 from djarecka/master

all current commits
small cleaning
changing importing
adding rc to return
adding 2moment scheme to the comparison
eliminating error in plotting 2moment scheme
adding 2moment Morrison scheme to comparison
some cleaning and changes in plotting structure - still need cleaning
fixing bug i libcloudphxx_2mom - dot_qc, etc., shoul be multiply ba dt
checking different nc and dt
Merge pull request #2 from djarecka/libcloud_pytest

Libcloud pytest