Add python to code-type list
Always use the most verbose log level specified

When options --debug and --verbose are specified, use the log level
debug instead of verbose as it includes all messages of the other log
levels.
Merge pull request #58 from Flowm/master

Thanks.
Merge pull request #57 from basti1508/add_python_SH

Add python to code-type list
Generate model tag
Adding post-tag model
Add validation for uniqeness
Add link_tag function to post model
Additional validation for model tag
Merge branch 'tags' of github.com:basti1508/graveio into tags