More precise infos on Debian and Ubuntu dependencies
add space between Python and 3
updated README for clearer informations on Debian+Ubuntu install
missing space
Merge pull request #23 from baldurmen/master

More precise infos on Debian and Ubuntu dependencies
READMEs: minor fixes
Merge branch 'bvan/master' into v2-base
READMEs: add install deps using package manager
READMEs: add note about proxies
TransportJson: add set_http_proxy method

Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca>