Increment the version number (1.4.0).

Start the next development milestone.

CMakeLists.txt

@@ -82,8 +82,8 @@ execute_process (COMMAND ${GIT} describe HEAD
 # out of source.
 #
 set (CPACK_PACKAGE_VERSION_MAJOR "1")
-set (CPACK_PACKAGE_VERSION_MINOR "3")
-set (CPACK_PACKAGE_VERSION_PATCH "4")
+set (CPACK_PACKAGE_VERSION_MINOR "4")
+set (CPACK_PACKAGE_VERSION_PATCH "0")
 if (TARANTOOL_VERSION STREQUAL "")
     set (TARANTOOL_VERSION
         "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}")