code conventions
Merge pull request #146 from joernhees/code_conventions

code conventions
Space in front of line continuation
Using 2-space indent
Fixed long line (PEP8)
Merge pull request #150 from mdxs/upd_run_script2

Updated run script (code layout only)
Minor fixes in run.py
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.
Reorder imports.