Add .php and .py meterpreter excludes to gitignore

.gitignore

@@ -68,6 +68,8 @@ external/source/exploits/**/Release
 # Avoid checking in Meterpreter binaries. These are supplied upstream by
 # the metasploit-payloads gem.
 data/meterpreter/*.dll
+data/meterpreter/*.php
+data/meterpreter/*.py
 data/meterpreter/*.bin
 data/meterpreter/*.jar
 data/meterpreter/*.lso