Whitespace
Clear out PMA's error handler

* Add an error_handler function that just returns true. This prevents eventual
  ENOMEM errors and segfaults like these:
    [Fri Apr 26 15:01:00 2013] [error] [client 127.0.0.1] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 44659282 bytes) in /home/egypt/repo/phpmyadmin/libraries/Error.class.php on line 156
    [Fri Apr 26 15:01:16 2013] [notice] child pid 7347 exit signal Segmentation fault (11)
* clean up some whitespace
Make sure LPORT is a string when subbing

* Gets rid of conversion errors like this:
    [-] Exploit failed: can't convert Fixnum into String
* also removes comments from php meterp. Works for me with the
  phpmyadmin_preg_replace bug, so seems legit.
Merge pull request #4 from jlee-r7/landing-1772-phpmyadmin

Clear out PMA's error handler