Merge pull request #71 from Kedrigern/patch-1

Update F21 dependency

README.linux

@@ -31,7 +31,7 @@ On Debian-based systems (e.g. Ubuntu) run:
   sudo apt-get install cmake g++ libsdl1.2debian libsdl-image1.2-dev libsdl-ttf2.0-dev libsdl-mixer1.2-dev zlib1g-dev libavformat-dev libswscale-dev libboost-dev libboost-filesystem-dev libboost-system-dev libboost-thread-dev libboost-program-options-dev libboost-locale-dev qtbase5-dev
 
 On RPM-based distributions (e.g. Fedora) run:
-  sudo yum install cmake gcc-c++ SDL2-devel SDL2_image-devel SDL2_ttf-devel SDL2_mixer-devel boost boost-devel boost-filesystem boost-system boost-thread boost-program-options boost-locale zlib-devel ffmpeg-devel ffmpeg-libs
+  sudo yum install cmake gcc-c++ SDL2-devel SDL2_image-devel SDL2_ttf-devel SDL2_mixer-devel boost boost-devel boost-filesystem boost-system boost-thread boost-program-options boost-locale zlib-devel ffmpeg-devel ffmpeg-libs qt5-qtbase-devel 
 
 II. Getting the sources