- Really obey the ipv4-timeout to the ms

  A configurable timeout should be added later on?

(Closes #229)

  which are supported by aout modules (closes #201)
- Use appropriate values in es format computations

   startup. Fixed two typos in two strings.

* Mark the video and decoder options of the dummy module as advanced. This 'hides' the problem described in #162

* Don't show the General node in OS X playlist. it complicates logic, but looks much nicer this way.

* Use 0 as default quality setting. The previous "3" would make VLC ignore the ab= argument unless being explicitely told to use cbr with the --sout-vorbis-cbr oprion.

    
    done:
    - all items are included with complete l10n support
    - checkboxes and select-file-buttons behave as they are supposed to
    
    todo:
    - implementation of the logic, i.e. handling of the collected values, respective manipulation of the GUI, start of the stream
    - move some arrays to an external header file
    - some GUI things (e.g. radio buttons on page 2, etc. - see FIXMEs)
    - implementation of some help-dialogues (it might be necessary to create a re-usable window in the nib for that, since NSAlert is Panther and Tiger only)
    - l10n string fixes (both in OSX and WX)
    => most of the work still needs to be done

   escaped with the E_() macro, to avoid namespace collisions between plug-ins.

   allowed to connect. The format is :
   192.168.0.0/24
   172.16.12.42/32
 * src/misc/net.c: New function net_CheckIP to check that an IP is in a
   given range.
 * OTHERS: Changed prototypes to allow for two new arguments for the
   hosts list.

away (even if the user had --playlist-enqueue saved in his vlcrc file)

category's image ... which is different from the linux display where
subcategories don't have images)

fixes #184

   it is called with an invalid playlist item.