New version of Stargus extract data to MyDocs/stratagus/stargus instead /opt/stratagus

So problem with free space on /opt is solved

Note for upgrade:
To clean /opt remove folder /opt/stratagus/share/stargus and then reinstall stargus. When stargus will be only updated via apt-get or Hildon Application Manager /opt will not be cleaned

$ sudo rm -rf /opt/stratagus/share/stargus
$ sudo apt-get install --reinstall stargus