Do not expose language territory

As we currently don't distinguish anyway between different language
territories, there's no use in exposing the territory through the UI.
mv locale to the top in instance settings
move display_category_pages to general settings
regular badges before thumbnail badges in instance settings
Merge pull request #725 from nidico/feature-no-lang-territory

Do not expose language territory
Merge pull request #722 from xi/feature-mv-instance-settings

mv instance settings
add some more instance settings help texts (continues 9291601)
add badge help texts
i18n: extract_messages
"category" instead of "badge" in category forms
typo
make string translateable
add category long_description help text
fixup 1217b0f
i18n: extract_messages
fix tile header size
fix tiles with in IE <10
avoid cyclic redirects with logos
pep8
add instance_option page_index_as_tiles