use lists instead of bools to configure instance_overview
allow events pager in instance overview
sort config options alphabetically
fix missing background colors on small screens
Merge pull request #589 from xi/feature-events-on-overview

events on instance overview [changes config]
fix pep8, pyflakes, unicodes

There should only be flake8 errors in contrib and migrations now.
Make test_entities happy

by avoiding non-html entities in html files, even if used in python
code. This should be fixed in the test_entities test, but this is a bit
hard, and it's a good idea to make use of base_url parameters.
Add travis configuration
Add python 2.6 to travis CI configuration
Merge branch 'feature-enable-travis' into develop
Fix instance wide search

Fixup 89900f1e88fc70ec70f95d7619cba1657bb9258c
autopep8

Reduce remaining pep8 complaints by a factor of 2 by applying some
conservative autopep8:

    autopep8 -a -a -i -r
-select=E225,E231,E251,E261,E301,E302,E303,E304,E309,W291,W293,W391
contrib migration

Didn't like the way the tool does reindentation, so didn't use that.
more pep8
make pep8 test more strict
Undo accidental changes

Fixup 822a05ca59a7d7d2aae822ccea105ab2f62dd8b6
generally set img max-width to 100%
Prevent travis from recognizing adhocracy as a ruby project
wrap mail
also wrap body in massmessage preview
Allow to assign user badges during user import

Global admins are allowed to assign global badges as well as instance
badges, while non-global admins can only assign instance badges.

To clarify the input format, a placeholder is added.