Updating Authors file with new contributors

AUTHORS

@@ -2,21 +2,25 @@ Tobias Doerffel
   <tobydox/at/users/dot/sourceforge/dot/net>
   Maintainer, main-development, artwork etc.
 
+Jonathan Aquilina
+  <eagles051387/at/gmail/dot/com>
+  Project Manager
+
 Paul Giblock
   <drfaygo/at/gmail/dot/com>
-  development
+  Development
 
 Danny McRae
   <khjklujn/at/yahoo.com>
-  development
+  Development
 
 Javier Serrano Polo
   <jasp00/at/terra/dot/es>
-  development
+  Development
 
 Andrew Kelley
   <superjoe30/at/gmail/dot/com>
-  development
+  Development
 
 Andreas Brandmaier
   <andy/at/brandmaier/dot/de>
@@ -24,12 +28,40 @@ Andreas Brandmaier
 
 Juan Fabián Simón
   <treees@gmail.com>
-  version 4.0 plugin artwork
+  Version 4.0 plugin artwork
 
 Sebastian Tilsch
   <djcompilation/at/gmx/dot/de>
-  recording of many samples
+  Recording of many samples
 
-gabriel
+Gabriel
   <kryos1/at/shaw/dot/ca>
-  additional artwork
+  Additional artwork
+
+Vesa Kivimäki
+  <dii/dot/dii/at/nbl/dot/fi>
+  UI Lead developer
+
+Gurjot Singh
+  <bhattigurjot/at/gmail/dot/com>
+  Developer
+
+Hannu Haahti
+  <grejppi/at/gmail/dot/com>
+  Developer
+
+Uroš Maravić
+  <uros/dot/maravic/at/gmail/dot/com>
+  UI Developer
+
+Tobiasz Karoń (unfa)
+  <unfa/at/unfamusic/dot/com>
+  UI Developer
+
+Johannes Lorenz
+  <johannes89/at/mailueberfall/dot/de>
+  Developer
+
+Rubén Ibarra Pastor
+  <pastorrub/at/msn/dot/com>
+  Developer