media manager: IE7 fixes (and other small improvements)

media manager: adjusted file uploader styles in media popup to recent changes

whitespace fixes: tabs to spaces

removed obsolete todo

media manager: file uploader improvements

renamed mediamanager.css to start with underscore

media manager: fixed and improved diff views

fix namespace cleaning FS#2295

This patch applies the correct pagename cleaning to namespaces as well.
Namespaces should follow the same rules as pagenames but due to a bug it
was possible to have n

fix namespace cleaning FS#2295

This patch applies the correct pagename cleaning to namespaces as well.
Namespaces should follow the same rules as pagenames but due to a bug it
was possible to have namespaces ending in a underscore.

If you used such a namespace it will be inaccessible after applying this
patch. You should rename the namespace directory on the filesystem
(removing the trailing underscore). You old links will then work
automatically again. Rebuilding the search index is recommended.

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Fixed the Windows share warning (related to #2274)

Small JavaScript improvements

Fix swipe diff JS

More mediamanager reworking

Resize images in fullscreen mediamanager using CSS

Only resize to fullscreen if screen is big enough

media manager: improved the panel widths

Fix resizing and file panel AJAX-based tabs

Add file revision above file detail page

Simplified Chinese language update

Norwegian language update

Finnish language update

Esperanto language update

Greek language update

media manager: renamed List display option to 'Rows'

media manager: shortened text for media list headline

media manager: improved spacing around option buttons and changed lang strings for them