Remove unused file

That file is apparently unused - introduced with https://github.com/owncloud/core/commit/30b58f56771aa54304069d40a62070c06f5308fc

I guess we can remove it...
Adding autotest-hhvm.sh
Fix issues with searchByTag in shared storage
HHVM sets stream meta datum wrapper_type to 'File' instead of 'user-space'.
Clarify return values

This function returns `null` when no user is logged-in.
Fix typo
Next step in server-to-server sharing next generation, see #12285

Beside some small improvements and bug fixes this will probably the final state for OC8.

To test this you need to set up two ownCloud instances. Let's say:

URL: myPC/firstOwnCloud user: user1
URL: myPC/secondOwnCloud user: user2
Now user1 can share a file with user2 by entering the username and the URL to the second ownCloud to the share-drop-down, in this case "user2@myPC/secondOwnCloud".

The next time user2 login he will get a notification that he received a server-to-server share with the option to accept/decline it. If he accept it the share will be mounted. In both cases a event will be send back to user1 and add a notification to the activity stream that the share was accepted/declined.

If user1 decides to unshare the file again from user2 the share will automatically be removed from the second ownCloud server and user2 will see a notification in his activity stream that user1@myPC/firstOwnCloud has unshared the file/folder from him.
Link to HTTPS page

Those domains are now accessible via HTTPS
cache keys to read them only once from the hard disc
change Documents default typeface from serif to sans-serif
Split mapping from Access and Helper classes into it's own. Fully test them, too.

remove unused methods

split mapping methods off from Access class

fix DB query handling

move 'clear mapping' methods from static helper to new mapping class

add tests

test directly with DB

finishing tests and fix return value from setDNbyUUID

add corresponding class for groups and make abstract test class neutral. helper tests is now obsolete as the tested functions were moved to the new mapper class.

add missing info to PHPDoc

add unmap method

fix namespaces

fix test inheritance

PHPDoc and a small code restructure for scrutinizer, no effective changes

PostgreSQL does not accept LIMIT in DELETE queries

phpdoc fixes, no code changes
Merge pull request #12101 from owncloud/ldap_split_mapping

Ldap split mapping from Access superclass
Merge pull request #12749 from owncloud/server2server-sharing-ng

server to server sharing next generation
Fix Undefined variable: result at tags.php#231

Fix app":"PHP","message":"Undefined variable: result at \/var\/www\/owncloud\/lib\/private\/tags.php#231" by moving the function call into the respective loop

Adjust indentation

Do it right - indentation

sorry, this is my first one
Merge pull request #12972 from owncloud/use-https-where-possible

Link to HTTPS page
[tx-robot] updated from transifex
Change support message to be more explicit about the enterprise edition
Merge pull request #12974 from owncloud/documents-typeface

change Documents default typeface from serif to sans-serif
Properly call parent::tearDown() in MDB2SchemaManager::tearDown().

The early return introduced by 04c982a96e19f2254739c24ee8c6b568edcb4190
prevents parent::tearDown() being called on Oracle.
add an interface for the timefactory class

fix indention