Bump library version to 4.2.0.

git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@5741 7894878c-1315-0410-8ee3-d5d059ff63e0

lib/Module.mk

@@ -33,7 +33,7 @@ LIBMAN5FILES := $(MODULE_DIR)/sensors.conf.5
 # changed in a backward incompatible way.  The interface is defined by
 # the public header files - in this case they are error.h and sensors.h.
 LIBMAINVER := 4
-LIBMINORVER := 1.0
+LIBMINORVER := 2.0
 LIBVER := $(LIBMAINVER).$(LIBMINORVER)
 
 # The static lib name, the shared lib name, and the internal ('so') name of