New mechanic: Jail + fixed mob book cover issues

Added new mechanic: jail. Fixed missing card info reference about
dropper mobs on the sql, reflecting into erros on the monster book.

scripts/portal/jail_in.js

@@ -0,0 +1,9 @@
+/**
+ * @author: Ronan
+ * @event: Jail - visit to jail :3
+*/
+
+function enter(pi) {
+        pi.warp(300000012,0);
+        return(true);
+}

scripts/portal/jail_out.js

@@ -0,0 +1,21 @@
+/**
+ * @author: Ronan
+ * @event: Jail
+*/
+
+function enter(pi) {
+        var jailedTime = pi.getJailTimeLeft();
+    
+        if(jailedTime <= 0) {
+                pi.warp(300000010,0);
+                return(true);
+        }
+        else {
+                var seconds = Math.floor(jailedTime / 1000) % 60 ;
+                var minutes = (Math.floor(jailedTime / (1000*60)) % 60);
+                var hours   = (Math.floor(jailedTime / (1000*60*60)) % 24);
+            
+                pi.playerMessage(5, "You have been caught in bad behaviour by the Maple POLICE. You've got to stay here for " + hours + " hours " + minutes + " minutes " + seconds + " seconds yet.");
+                return(false);
+        }
+}