Fixed author list

AUTHORS

 BornAgain source code is currently developed by
 
-* Dmitry Yurov
-* Gennady Pospelov
-* Joachim Wuttke
 * Jonathan Fisher
 * Marina Ganeva
+* Gennady Pospelov
 * Walter Van Herck
+* Joachim Wuttke
+* Dmitry Yurov
 
 Our former contributors:
 
-* Abhishek Khanna
-* Céline Durniak
-* David Li
-* Ivonna Li
+* Rebecca Brydon
 * Jan Burle
+* Céline Durniak
 * Mohammad Mahadi Hasan
-* Rebecca Brydon
 * Sezer Karaca
+* Abhishek Khanna
+* David Li
+* Ivonna Li

CITATION

 Citing BornAgain
 
-C. Durniak, M. Ganeva, G. Pospelov, W. Van Herck, J. Wuttke (2015)
-BornAgain — Software for simulating and fitting X-ray and neutron small-angle scattering
-at grazing incidence, version <...>, http://www.bornagainproject.org
+J. Burle, C. Durniak, J. M. Fisher, M. Ganeva, G. Pospelov, W. Van Herck, J. Wuttke, D. Yurov (2017)
+BornAgain - Software for simulating and fitting X-ray and neutron small-angle scattering
+at grazing incidence, http://www.bornagainproject.org, Version <version>.