Merged r12299 from trunk to 2.4-stable (#15391, #15402)

Czech traslation for 2.4-stable updated by Karel Pičman.

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Merged r12300 from trunk to 2.4-stable (#15395)

German translation updated by Daniel Felix.

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Merged r12301 from trunk to 2.4-stable (#15391, #15400)

Czech Wiki syntax traslation updated by Karel Pičman.

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branch : 2.4-stable
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Merged r12302 from trunk to 2.4-stable (#15391, #15401)

Fix wiki syntax "bold italic".

Contributed by Karel Pičman.

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branch : 2.4-stable
extra : convert_revision : svn%3Ae93f8b46-1217-0410-a6f0-8f06a7374b81/branches/2.4-stable%4012307