+ display lack of map in a nice way, don't generate bogus preview in the background
* improve map selection behavior in online mode, so that players can load a missing map and have it correctly selected after pressing F5 without any rejoin, map-reselection. also doesn't cause "different maps generated" anymore if map is missing, instead the person lacking the map gets "invalid genmap" and drops out of game immediatly
glob:CMakeCache.txt
glob:CMakeFiles
glob:moc_*.cxx
glob:qrc_*.cxx
glob:*.o
glob:Makefile
glob:bin
glob:*.hi
glob:*.ppu
glob:*.*~
glob:*.core
glob:hedgewars.pro.user
glob:config.inc
glob:cmake_install.cmake
glob:QTfrontend/hwconsts.cpp
glob:CPackConfig.cmake
glob:CPackSourceConfig.cmake
glob:tools/cmake_uninstall.cmake
glob:install_manifest.txt
glob:.DS_Store
glob:*.swp
glob:*.orig
glob:*.diff
glob:vittorio.*
glob:project_files/HedgewarsMobile/Data/
glob:project_files/HedgewarsMobile/build/
glob:gameServer/dist/
glob:misc/libtremor/Xcode/build/
glob:misc/liblua/Xcode/build/
glob:misc/libfreetype/Xcode/build/
glob:misc/libfreetype/Xcode-iOS/build/
glob:moc_*.cxx_parameters
relre:^release\/
glob:*.log
glob:*.cmd
glob:*.diff
glob:*.patch
glob:*.orig
glob:*.bak
glob:*.rej
glob:project_files/Android-build/SDL-android-project/jni/**
glob:project_files/Android-build/SDL-android-project/obj
glob:project_files/Android-build/SDL-android-project/libs
glob:project_files/Android-build/SDL-android-project/bin
glob:project_files/Android-build/SDL-android-project/gen
glob:project_files/Android-build/SDL-android-project/local.properties
glob:project_files/Android-build/SDL-android-project/project.properties
glob:project_files/Android-build/SDL-android-project/default.properties
glob:project_files/Android-build/SDL-android-project/proguard.cfg
glob:project_files/Android-build/SDL-android-project/.*
glob:project_files/Android-build/out
glob:project_files/Android-build/Makefile.android