New contributors file

Author: ph

CONTRIBUTORS

@@ -0,0 +1,12 @@
+The following is a list of people who have contributed ideas, code, bug
+reports, or in general have helped logstash along its way.
+
+Contributors:
+* João Duarte (jsvd)
+* Pier-Hugues Pellerin (ph)
+* Tal Levy (talevy)
+
+Note: If you've sent us patches, bug reports, or otherwise contributed to
+Logstash, and you aren't on the list above and want to be, please let us know
+and we'll make sure you're here. Contributions from folks like you are what make
+open source awesome.