Activity oracle sql error for favorites

Update some JS dependencies

Fix the width of the share with input

Use XMLWriter to generate response

So evaluate the condition directly and return 1 or 0

Fix ext storage mount options dropdown

* the ID of this has changed to #shareWith-viewNUMBER and shouldn't
  be used in CSS
* now uses the proper classes

Gets rid of manual XML generation.

Implement systemtag managers and mapper

Fix public link getDownloadUrl to return Webdav public link

Update README.md

cache resized avatars

Use phpunit groups to run database code in isolation

Don't trust update server

Adding group Db to federation tests and ldap tests

Add group DB to Test_UrlGenerator

Adding group DB to trashbin and versions tests

Adding group DB to Test_Util_CheckServer for pg

Adding more DB groups to test suits

Introduce evaluation of an environment variable to choose if all, only database or only database unit tests are to be executed.
This is mainly required on automated execution on Jenkins

A TestCase which is not annotated to be in group DB will not allow access to the database connection.
This is necessary to categorize unit test and avoid duplicate test case execution - it also allows us to closely review unit test implementations to identify unnecessary db calls.