Merge pull request #8 from trontrytel/master

sync
ventilation added
Merge branch 'master' of github.com:slayoo/libcloudphxx
fixing ventilation
Merge pull request #9 from trontrytel/master

stp in blk_2m
stp correctoin for sdm
sdm stp fix
sync
fixing iterator usage in forcings_columnwise to allow blitz to be used with debug mode
new reference-based signatures in blk_1m; listing tags
sync
sync
wim on blk_2m