Improve un.p.acker detection, fix beautifier#357

Author: Einar Lielmanis

js/lib/unpackers/p_a_c_k_e_r_unpacker.js

@@ -18,7 +18,7 @@ var P_A_C_K_E_R = {
     },
 
     get_chunks: function(str) {
-        var chunks = str.match(/eval\(\(?function\(.*?,0,\{\}\)\)($|\n)/g);
+        var chunks = str.match(/eval\(\(?function\(.*?(,0,\{\}\)\)|split\('\|'\)\)\))($|\n)/g);
         return chunks ? chunks : [];
     },