[c-c newcube] #1192: simpler cubicweb-ctl newcube, and more * new --layout option, to get 'simple' or 'full' cube * new --licence option to specify license for the cube * added README and sobjects.py template (the later only added in full layout) * fixed python file templates to get proper headers according to the config

addressbook
basket
blog
book
calendar
comment
company
email
file
folder
i18ncontent
keyword
link
mailinglist
person
tag
timeseries
vcsfile