Upgrade contributors

Author: Pierre-Sassoulas

CONTRIBUTORS.txt

@@ -14,8 +14,8 @@ Ex-maintainers
 Maintainers
 -----------
 - Pierre Sassoulas <[email protected]>
-- Daniël van Noord <[email protected]>
 - Jacob Walls <[email protected]>
+- Daniël van Noord <[email protected]>
 - Marc Mueller <[email protected]>
 - Hippo91 <[email protected]>
 - Bryce Guinta <[email protected]>
@@ -47,6 +47,7 @@ Contributors
 - Calen Pennington <[email protected]>
 - Antonio <[email protected]>
 - Akhil Kamat <[email protected]>
+- Zen Lee <[email protected]>
 - Tim Martin <[email protected]>
 - Phil Schaf <[email protected]>
 - Alex Hall <[email protected]>
@@ -78,13 +79,13 @@ Contributors
 - [email protected] <[email protected]>
 - doranid <[email protected]>
 - brendanator <[email protected]>
-- Zen Lee <[email protected]>
 - Tomas Gavenciak <[email protected]>
 - Tim Paine <[email protected]>
 - Thomas Hisch <[email protected]>
 - Stefan Scherfke <[email protected]>
 - Sergei Lebedev <[email protected]>
 - Saugat Pachhai (सौगात) <[email protected]>
+- Robert Hofer <[email protected]>
 - Ram Rachum <[email protected]>
 - Pierre-Yves David <[email protected]>
 - Peter Pentchev <[email protected]>
@@ -100,6 +101,7 @@ Contributors
 - John Vandenberg <[email protected]>
 - Jacob Bogdanov <[email protected]>
 - Google, Inc. <[email protected]>
+- Emmanuel Ferdman <[email protected]>
 - David Euresti <[email protected]>
 - David Douard <[email protected]>
 - David Cain <[email protected]>