translation update

translation update

Extension Manager: adjust notice strings

Because notices are shown on command line as well as in the admin GUI,
we can not use HTML in them. This adjusts the affected language strings
and removes th

Extension Manager: adjust notice strings

Because notices are shown on command line as well as in the admin GUI,
we can not use HTML in them. This adjusts the affected language strings
and removes the previously used clean up routine.

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Extension Manager: small language adjustments

Extension Manager: add installer to GUI

Now the GUI uses the new Installer class. More work has been done on
the GUI itself

translation update

translation update

Update de, de-informal

translation update

Merge pull request #2577 from chang-zhao/patch-5

Add links "plugins" & "templates" to intro_search.txt