Makefile: version set to pre-release

- development cycle for 3.2.0 ended

Makefile.defs

@@ -162,7 +162,7 @@ INSTALL_FLAVOUR=$(FLAVOUR)
 VERSION = 3
 PATCHLEVEL = 2
 SUBLEVEL =  0
-EXTRAVERSION = -dev7
+EXTRAVERSION = -pre1
 
 # memory debugger switcher
 # 0 - off (release mode)