Improve testing of the help message text headers.

It will detect now #define statements without replacement text.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36765 b3059339-0415-0410-9bf9-f77b7e298cf2
Revise GUI help message texts.

In particular, revise the English and German translations,
but remove some unused definitions from all language files
as well, and don't define a symbolic constant by an other one.

Additionally, make some necessary code changes.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36766 b3059339-0415-0410-9bf9-f77b7e298cf2
Remove pointless pair of parentheses.

It will detect #define statements having no replacement text
without the second pair of parentheses just as well.

Thanks to al for spotting it.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36767 b3059339-0415-0410-9bf9-f77b7e298cf2
Revise GUI help message texts.

Remove colons, ellipses and newlines from the end of the texts.

This reduces the amount of texts to be translated, enhances reusability
and harmonizes the visual appearance of the different GUI localizations.

Additionally, make the necessary code changes.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36768 b3059339-0415-0410-9bf9-f77b7e298cf2
Prettify the skin browser.

Use the same design as with the other similar lists
(available audio and video drivers, playlist).


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36769 b3059339-0415-0410-9bf9-f77b7e298cf2