[bp/r47857] Duplicate file upload in IE10

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[bp/r47880][FIX] category admin: Seems the pagination has been very broken on this page for a long time (see r30064) and now almost every object gets loaded (fully) on each page load, leading to WSoD on large sites, so try and set the memory and timeout to unlimited so at least something appears eventually (if php settings allow)

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[FIX][bp/r47909]Usability fix. allowFullscreen was present in the plugin youtube but missing in the module; playlists usually contain many videos, and the user frequently prefers displaying them in small size but with the option to set anyone in full screen to view it properly.

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[FIX][bp/r47928]Double quotes needed to respect translations that require single quotes in the translated string

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