Bump version to 4.0 in preparation for future release.

CMakeLists.txt

@@ -31,8 +31,8 @@ set(BLKID_MIN_VERSION "2.33.2")
 # smartmontools 7.0
 # Qca plugin (botan or ossl)
 
-set(VERSION_MAJOR "3")
-set(VERSION_MINOR "80")
+set(VERSION_MAJOR "4")
+set(VERSION_MINOR "0")
 set(VERSION_RELEASE "0")
 set(VERSION ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_RELEASE})
 set(SOVERSION "8")