add basic fabfile
some changes to fabfile
add preliminary scraper script using requests and BeautifulSoup
improve logging and error handling, set app.logger level to 30 in testweb
implement markdown:
 * add to requirements
 * add markup property to Meme model
 * refer new property in templates
implement relative datetime filter (reldatetime) for jinja2, use in templates for modified/added time and update testweb.py
some significant modifications to layout of memes and update tests
update README
add to fabfile
Merge branch 'deploy' into develop
update fabfile