Added encode declaration and code format.
Fix shadows 'next' built-in. Closes #142
Merge pull request #143 from gmist/fix_shadows_next

Fix shadows 'next' built-in.
Merge pull request #140 from gmist/fix_code_style

Added encode declaration and code format.
Compare based on UTC date/time; even if we are just comparing dates...
Handle FILE_UPDATE in with-block
Merge pull request #145 from mdxs/upd_file_update

Improved FILE_UPDATE handling in run script
Removed duplicate
Renamed main to app.
Reafactoring: moved oauth providert to a separate files.
Refactoring: decorators moved to a separate file.
Refactoring: moved signin/signout to separate file.
Refactoring: current_user_xxx functions moved to a separate file.
Refactoring: LoginManager setup moved to separate file.
Refactoring: remove empty auth.py
And final refactoring - rename oauth to auth.
Prepare for further refactoring.
Refactoring: moved oauth providers to a separate files.
Refactoring: removed providers_.py
Auto import providers.