Fix for event serialization, multi-ilne variables or crazy characters in a line could cause parsing errors in consumers of serialized events.

All values are now url encoded to ensure they don't have "dangerous" characters in them.  make sure you url_decode in your language of choice when consuming events in plain format from the event socket.

For those perl or pcre heads out there you can use the following regex:
$value =~ s/\%([A-Fa-f0-9]{2})/pack('C', hex($1))/sego;



git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3481 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/switch_utils.c

@@ -297,7 +297,7 @@ SWITCH_DECLARE(size_t) switch_url_encode(char *url, char *buf, size_t len)
 {
     char *p;
     size_t x = 0;
-    const char urlunsafe[] = " \"#%&+:;<=>?@[\\]^`{|}";
+    const char urlunsafe[] = "\r\n %\"#%&+:;<=>?@[\\]^`{|}";
     const char hex[] = "0123456789ABCDEF";
 
     memset(buf, 0, len);