Bump SONAME to 4.0.0

git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2144 fd59a12c-fef9-0310-b244-a6a79926bd2f

configure.ac

@@ -154,7 +154,7 @@ LINT_FLAGS="-weak -unrecog +posixlib +ignoresigns -fcnuse \
 	-badflag -D__gnuc_va_list=va_list -D__attribute\(x\)="
 
 # libraries SONAME
-SOMAJOR="3"
+SOMAJOR="4"
 SOMINOR="0"
 SOMICRO="0"
 SONAME="${SOMAJOR}.${SOMINOR}.${SOMICRO}"