b=160746 Update PSM's version number to 2.4

r=javi sr=alecf

security/manager/ssl/src/nsCrypto.h

@@ -38,7 +38,7 @@
 #define NS_PKCS11_CID \
   {0x74b7a390, 0x3b41, 0x11d4, { 0x8a, 0x80, 0x00, 0x60, 0x08, 0xc8, 0x44, 0xc3} }
 
-#define PSM_VERSION_STRING "2.3"
+#define PSM_VERSION_STRING "2.4"
 
 class nsIPSMComponent;
 class nsIDOMScriptObjectFactory;