Server called server in menu entry
Merge remote-tracking branch 'upstream/master'
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Create x48, x64 and x128 icons for client

* Use imagemagick's Point filter to generate nice icons for all
  sizes (no pixels were harmed in the making of these icons)
* Call "dpkg-trigger hicolor-icon-theme" manually, since the package
  doesn't think it has any icons, and doesn't call it automatically
No icons for server, avoid imagemagick dependency

* Having icons for the server is kind of excessive, and it forces
  an unnecessary dependency on imagemagick, with no icon specified
  the system placeholder will be used for the server menu entry
Pre-Depends: imagemagick for client, remove for server

* Using something in postinst mandates a Pre-Depends, in our case
  imagemagick
* Server don't need imagemagick at all now it has not special icon
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Change server script to default to home

minecraft-server script now defaults to $HOME/.minecraft/server
unless fed a path option, this breaks earlier behaviour of dumping
server items in the working directory, but I think that behaviour
was incorrect.
Execute menu entry server with GUI
Activate trigger by correct name, and in triggers file instead
Fixup server script

* add usage
* make posixly
* set nogui correctly
indent more in script, set sh as interpreter
Don't shift away unknown args
Add manual pages and call from scripts
Remove hicolor trigger from prerm as well
slight reword+tweaking manpage
Use a nice custom icon instead
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fixup debian menu
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