Fixes an error on PHP 7.1 #1682

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getMock is deprecated in new PHPUnit versions and createMock is the
recommended replacement. However that one is not available in older
PHPUnit releases. Since we still support older PHP releases we have to
support older PHPUnit releases as well.

This add some compatibility functions to our TestCase class and replaces
all calls to getMock. Tested with PHPUnit 4.6.6 and 5.5.0.

DokuWiki assumes that the server's time is correct. Especially page
revisions and cache handling depend on correct time. If that's not the
case it can lead to problems later (as mentioned in #1644).

This patch adds a very simple time check using the Date response header
from the DokuWiki server to our do=check mechanism.

Update confutils.php

spelling fix

git ignore Eclipse IDE files

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Using an HTML entitiy might be problematic in non HTML renderers or when
the output is escaped again.

We decoded the wrong option here before.

It seems some update of the adLDAP library made a crucial function
protected, thus breaking the authad plugin.

This just makes the function public again, which should fix the
immeadiate problem. A proper fix would need to do #1553 as well

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