THEOS_INSTALL_KILL patch.

theos_install_kill.patch

diff --git a/makefiles/master/tweak.mk b/makefiles/master/tweak.mk
index 9b0025a..eaf67c0 100644
--- a/makefiles/master/tweak.mk
+++ b/makefiles/master/tweak.mk
@@ -4,6 +4,10 @@ ifeq ($(_THEOS_RULES_LOADED),)
 include $(THEOS_MAKE_PATH)/rules.mk
 endif
 
+ifeq ($(THEOS_INSTALL_KILL),)
+    THEOS_INSTALL_KILL:=SpringBoard
+endif
+
 before-all::
 	@[ -f "$(THEOS_LIBRARY_PATH)/libsubstrate.dylib" ] || bootstrap.sh substrate
 
@@ -12,7 +16,7 @@ internal-all:: $(TWEAK_NAME:=.all.tweak.variables);
 internal-stage:: $(TWEAK_NAME:=.stage.tweak.variables);
 
 internal-after-install::
-	install.exec "killall -9 SpringBoard"
+	install.exec "killall -9 $(THEOS_INSTALL_KILL)"
 
 TWEAKS_WITH_SUBPROJECTS = $(strip $(foreach tweak,$(TWEAK_NAME),$(patsubst %,$(tweak),$(call __schema_var_all,$(tweak)_,SUBPROJECTS))))
 ifneq ($(TWEAKS_WITH_SUBPROJECTS),)