Flake8 configuration file has been created and the existing
violations have been solved. Flake8 is also added to the
requirements and a script has been added to the travis.yml file
so that code is checked for linting issues after it is pushed.

**The violations that has been added to ignore section of the
flake8 configuration file has to be solved in near future. This is
just a temporary solution.**

Resolves #49

Resolves #49 Add flake8 code linter

fixes Plurization bug

Add feature real time search suggestion

Update views.py

    old: count with category
    new: count with file which is founded

    Error: add folder to recommend result even folder only contents md file(s)

Change json format

    I think it isbecause the url of github_webhook is empty string, and we has been setting APPEND_SLASH = True, so Django parse it as catalog.

    Error message:
    RuntimeError: You called this URL via POST, but the URL doesn't end in a slash and you have APPEND_SLASH set. Django can't redirect to the slash URL while maintaining POST data. Change your form to point to 35.190.178.58:8000/update/ (note the trailing slash), or set APPEND_SLASH=False in your Django settings.

Fix image distortion, beautify some templates

Prevent XSS, Fix some error

Fix update json errors.

fixes travis build error while working with models

Remove .pyc files tracked by git and update .gitignore

…arch into Metadatabug

add feat: computational power