Allow sending "cleartext" img tags in Adium

Adium does not use <img> tags for outgoing inline pictures in messages,
but initalizes a file transfer on its own. Additionally, they also don't
escape outgoing user-entered HTML, which means we must not search for outgoing HTML
<img> tags when using Adium, otherwise we would skip actual message
content.

tgp-msg.c

@@ -285,6 +285,8 @@ void send_inline_picture_done (struct tgl_state *TLS, void *extra, int success,
 }
 
 int tgp_msg_send (struct tgl_state *TLS, const char *message, tgl_peer_id_t to) {
+
+#ifndef __ADIUM_
   // search for outgoing embedded image tags and send them
   gchar *img = NULL;
   gchar *stripped = NULL;
@@ -329,7 +331,6 @@ int tgp_msg_send (struct tgl_state *TLS, const char *message, tgl_peer_id_t to)
     return -1;
   }
   
-#ifndef __ADIUM_
   /*
     Adium won't escape any HTML markup and just pass any user-input through,
     while Pidgin will replace special chars with the escape chars and also add