[FIX] If no addons-path provided, include the main addons [Fixes #29]

Seperate web.assets_common from other bundles

- scholar: the field is_correct is on the answer, not on the question
- remove closing reason 'an answer was accepted', the questions should be left as open to be possible to improve the answer afterward
- sort badges by most frequent first
- display the creation date of the question the same way we display the answer date

[FIX] remove closing reason 'an answer was accepted', the questions should be left as open to be possible to improve the answer afterward

Automatic auth='user' redirection for unlogged users

[FIX] website_forum: when sending emails about forum post, use the public url instead of the private

Also added a breadcrumb in partners navigation; when going on the partner view
a link to come back to the list view has been added and takes into account
selected grade and country.

opt out with query parameter ?noredirect=1

Slug redirects loses query_string

[FIX] sale: in paypal, the encoding of the url should be done with werkzeug instead of urllib for better handeling of unicode (opw 607866)

[ADD] Macedonian language

Docstrings, typo, and return value

Default event track is half hour not 30 hours

Update README.md