Add shebang to the executable createdb script
Port the templates to jinja2
Remove dependency to Flask-Mako

With the port of the templates to jinja, this dependency is no longer needed
Conver the flask application to use the new template names
Fix the decorator @api_method
Fix decorator api_method: forgot to rename a variable when changing its name
Merge pull request #3 from fedora-infra/pingou

Convert templates to jinja and fix decorator