Made an .hgignore to mostly match old svn:ignore properties.

.hgignore

+syntax:glob
+aclocal.m4
+autom4te*
+config.cache
+config.log
+config.status
+configure
+libtool
+Makefile
+sdl-config
+SDL.spec
+SDL.qpg
+build
+build-deps
+VisualC
+VisualCE
+Xcode
+.DS_Store
+sdl.pc
+include/SDL_config.h
+include/SDL_revision.h
+test/aclocal.m4
+test/autom4te*
+test/config.cache
+test/config.log
+test/config.status
+test/configure
+test/Makefile
+test/SDL.dll
+test/stdout.txt
+test/stderr.txt
+test/checkkeys
+test/graywin
+test/loopwave
+test/testpower
+test/testalpha
+test/testbitmap
+test/testblitspeed
+test/testcdrom
+test/testdyngl
+test/testerror
+test/testfile
+test/testgamma
+test/testgl
+test/testhread
+test/testiconv
+test/testjoystick
+test/testkeys
+test/testlock
+test/testoverlay
+test/testoverlay2
+test/testpalette
+test/testplatform
+test/testsem
+test/testsprite
+test/testtimer
+test/testver
+test/testvidinfo
+test/testwin
+test/testwm
+test/threadwin
+test/torturethread
+test/testloadso
+test/testgl2
+test/testcursor
+test/testwm2
+test/testmultiaudio
+test/testresample
+test/testdraw2
+test/testmmousetablet
+test/testdyngles
+test/testaudioinfo
+test/testgles
+test/testsprite2
+test/testintersections
+test/testhaptic
+test/testime
+test/testatomic
+test/testspriteminimal
+test/testfill
+test/*.exe
+test/*.dSYM