Remove .htaccess creation code

1. We're maintaining the same code twice which leads inevitably to problems as this one. The createHtaccess routine is only used to use the correct paths to the 404 and 403 document.
2. Updating the ownCloud instance as described in our documentation (`Delete everything from your ownCloud installation directory, except data and config.`) will break the links to the ErrorDocuments anyways and show the default error handlers if ownCloud is not installed in the root directory.
Typo + use regular assignment
A version bump is not necessary here
Merge branch 'master' into append-error-document

Conflicts:
	lib/private/setup.php
	lib/private/updater.php
Adapt chosen (css) path

Avoid shipping duplicate files in 3rdparty/css.

3rdparty/css/chosen/ already contains chosen.css and chosen-sprite.png
so its useless to duplicate them in 3rdparty/css.

Taking the same approach as in apps/calendar/appinfo/app.php and
apps/files_external/settings.php.
Add translatable mount configs

Will close #8070
Use echo since print_unescaped is not defined

Fixes https://github.com/owncloud/core/issues/8342
Expose public shares over webdav
"echo" is a language construct. Don't treat it like a function.
Merge pull request #8353 from owncloud/publicshare-webdav

Expose public shares over webdav
Merge pull request #8343 from owncloud/fix-status

Use echo since print_unescaped is not defined
fix single quote sanitization
Add another example to the trusted_domains config

Users often ask in IRC or the forum how to add another domain. 
Hopefully they will be able to find it out on their own if we have an example with two domains.
Merge pull request #8371 from owncloud/example-config

Add another example to the trusted_domains config
Clarify the trusted_domain error page
[tx-robot] updated from transifex
Grammatical fixes
Remove an added t by the github webeditor

Notice to myself: Stick to my IDE.
Merge pull request #8372 from owncloud/give-admins-a-hint

Clarify the trusted_domain error page
[tx-robot] updated from transifex