Remove sdl prefix from mame and mess

INSTALL

@@ -4,11 +4,8 @@ Installing Lutris
 Requirements
 ------------
 
-These are the requirements I was able to find on the development machine.
-Lutris should work on any Gnome system but the runner installation is currently
-tied to Software Center so it works only on Ubuntu and Debian.  In the future,
-the installation process will use a distro independent mechanism.
-In order to run Lutris, install the following packages.
+Lutris should work on any Gnome system, the following depencies should be 
+installed:
 
     * python == 2.7
     * python-xdg
@@ -16,32 +13,6 @@ In order to run Lutris, install the following packages.
     * PyGobject
     * libsoup-gnome
 
-If you want to manually install runners you can choose from the list below
-and install the ones you wish to use.
-
-    * wine
-    * scummvm
-    * uae
-    * mednafen
-    * sdlmame
-    * snes9x-gtk
-    * gens-gs
-    * steam (using wine)
-    * atari800
-    * dolphin-emu
-    * frotz
-    * dosbox
-    * hatari
-    * jzintv
-    * mednafen
-    * mupen64plus
-    * nulldc (1.0.3 only, using wine)
-    * o2em
-    * openmsx
-    * osmose
-    * pcsxr
-    * scummvm
-
 Installation
 ------------
 

lutris/runners/__init__.py

@@ -7,7 +7,7 @@ __all__ = (
     # Microsoft based
     "wine", "winesteam", "dosbox",
     # Multi-system
-    "sdlmame", "sdlmess", "scummvm", "mednafen",
+    "mame", "mess", "scummvm", "mednafen",
     # Commdore
     "fsuae", "vice",
     # Atari

lutris/runners/mame.py

@@ -4,7 +4,7 @@ from lutris import settings
 from lutris.runners.runner import Runner
 
 
-class sdlmame(Runner):
+class mame(Runner):
     """Runs arcade games with SDLMame"""
     platform = "Arcade"
     game_options = [

lutris/runners/mess.py

@@ -3,7 +3,7 @@ from lutris import settings
 from lutris.runners.runner import Runner
 
 
-class sdlmess(Runner):
+class mess(Runner):
     """ Multi-system (consoles and computers) emulator """
     platform = 'multi-platform'
     game_options = [