Mininet 2.3.0b1 (#1019)

Also tweak README.md, INSTALL, and CONTRIBUTORS

CONTRIBUTORS

@@ -18,34 +18,63 @@ Cody Burkard
 
 Additional Mininet Contributors
 
+Joseph Beshay
+M S Vishwanath Bhat
+Muhammad Umair Bhatti
+Arie Bregman
 Tomasz Buchert
-Gustavo Pantuza Coelho Pinto
 Fernando Cappi
+HW Chiu
 Ryan Cox
 Shaun Crampton
+Jason Croft
+Hantao Cui
+Nirmoy Das
+Lenoardo D'avila
+Giuseppe Di Lena
 David Erickson
+Juan Gascon
 Glen Gibb
 Andrew Ferguson
 Eder Leao Fernandes
+Julian Filter
+Ben Frankel
+Tim Gates
 Gregory Gee
 Jon Hall
 Roan Huang
 Vitaly Ivanov
+Theo Jepsen
+Mathieu Jadin
 Babis Kaidos
 Rich Lane
 Rémy Léone
+Xiaozhou Li
 Zi Shen Lim
 David Mahler
+Felix Maurer
 Murphy McCauley
+Alex Moijes
+Felician Nemeth
 José Pedro Oliveira
 James Page
+Gustavo Pantuza Coelho Pinto
+Ramon Pujianto
+Stempha Reiter
+Damien Saucez
+Shan Sikdar
 Angad Singh
 Piyush Srivastava
 Ed Swierk
 Darshan Thaker
+Olivier Tl]ilmans
+Niels van Adrichem
+Brad Walker
 Andreas Wundsam
+Vikas Yadav
 Isaku Yamahata
 Baohua Yang
+Zhuo
 
 Thanks also to everyone who has submitted issues and pull
 requests on github, and to our friendly mininet-discuss