Oops - merge version number bump from branch-0-55 (such was the plan).

[originally from svn r4430]

LATEST.VER

@@ -1 +1 @@
-0.54
+0.55

mac/version.r

@@ -2,7 +2,7 @@
  * Current PuTTY version number.  Minor is in BCD
  */
 #define VERSION_MAJOR 0x00
-#define VERSION_MINOR 0x54
+#define VERSION_MINOR 0x55
 
 resource 'vers' (1, purgeable) {
 #ifdef RELEASE

putty.iss

@@ -19,7 +19,7 @@
 
 [Setup]
 AppName=PuTTY
-AppVerName=PuTTY version 0.54
+AppVerName=PuTTY version 0.55
 DefaultDirName={pf}\PuTTY
 DefaultGroupName=PuTTY
 UninstallDisplayIcon={app}\putty.exe