Removed the DevIL backend from love.image. Replaced it with PNG and JPEG encoders/decoders via LodePNG, zlib, and libjpeg-turbo.

PNG and JPEG are now the only two supported image formats, aside from compressed DDS (DXT, etc.)

--HG--
branch : minor

platform/unix/genmodules

@@ -111,7 +111,7 @@ inc_libraries="$inc_current/libraries"
 cat > src/Makefile.am << EOF
 AM_CPPFLAGS = -I$inc_current -I$inc_modules -I$inc_libraries -I$inc_libraries/enet/libenet/include \$(LOVE_INCLUDES) \$(FILE_OFFSET)\
 	\$(SDL_CFLAGS) \$(lua_CFLAGS) \$(freetype2_CFLAGS)\
-	\$(openal_CFLAGS) \$(devil_CFLAGS) \$(libmodplug_CFLAGS)\
+	\$(openal_CFLAGS) \$(zlib_CFLAGS) \$(libmodplug_CFLAGS)\
 	\$(vorbisfile_CFLAGS)
 AUTOMAKE_OPTIONS = subdir-objects
 SUBDIRS =
@@ -144,7 +144,7 @@ lib_LTLIBRARIES = liblove${love_suffix}.la
 liblove${love_amsuffix}_la_LDFLAGS = -module -export-dynamic \$(LDFLAGS)
 liblove${love_amsuffix}_la_LIBADD = \
 	\$(SDL_LIBS) \$(freetype2_LIBS) \$(lua_LIBS)\
-	\$(openal_LIBS) \$(devil_LIBS) \$(libmodplug_LIBS)\
+	\$(openal_LIBS) \$(zlib_LIBS) \$(libmodplug_LIBS)\
 	\$(vorbisfile_LIBS)
 EOF