Japanese language update

added methods from xmlrpc.php to RemoteAPICore

use in_array to filter groups instead of preg_grep for acl

the usage of preg_grep can result in "regular expression is too large"
warnings, which leads to errors in auth_aclcheck.

Revert 4a24b459, thus fixing FETCH_MEDIA_STATUS for missing files (FS#2405)

Fix double URL-encoding in media manager (FS#2403)

Slight fix to match current version.

Rework for missing commit 08162f005f3ced0555de590dc1a53155af99d998

Rewark for missing commit 9aa0e6c6087e616511fc95d1650ca9b608edece8

Malay language update

Polish language update

Avoid a warning when a media cachefile doesn't exist yet

changed to new Remote Data objects

changed return types

added remote plugin calls.

RemoteAPI can now handle remote calls.

Dutch language update

Norwegian language update

fixed link in popup media manager to fullscreen media manager to open in correct namespace (FS#2401)

removed dublicated content

deprecated 3rd parameter of cleanID() FS#2377

For some reason trailing/leading underscores were allowed when uploading
files. But the rest of the code (eg. listing or downloading files) never
suppor

deprecated 3rd parameter of cleanID() FS#2377

For some reason trailing/leading underscores were allowed when uploading
files. But the rest of the code (eg. listing or downloading files) never
supported this. This patch removes this special case for uploading files
to streamline ID cleaning of pages and media files.

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introduced first remote test cases

collect remote functions in a class

Fixes SYMPTOMS of FS #2393

suppress errors on stream_select FS#2276

On certain environments, stream_select might produce temporary errors
when file descriptors are running scarce.

Latvian language update