welcome view: update description

- Change Ring description
- Add background texture to the main screen

Tuleap: #1291
Change-Id: I0c6646ad8223045a7127a8aa3db2113d28ed4e21
diff --git a/ui/Base.lproj/RingWindow.strings b/ui/Base.lproj/RingWindow.strings
index c50f874..29bf54f 100644
--- a/ui/Base.lproj/RingWindow.strings
+++ b/ui/Base.lproj/RingWindow.strings
@@ -44,8 +44,8 @@
 /* Class = "NSTextFieldCell"; placeholderString = "Category"; ObjectID = "d5o-nL-fRP"; */
 "d5o-nL-fRP.placeholderString" = "Category";
 
-/* Class = "NSTextFieldCell"; title = "Ring is a secure and distributed voice, video and chat communication platform that requires no centralized server and leaves the power of privacy in the hands of the user."; ObjectID = "eln-Vm-t0d"; */
-"eln-Vm-t0d.title" = "Ring is a secure and distributed voice, video and chat communication platform that requires no centralized server and leaves the power of privacy in the hands of the user.";
+/* Class = "NSTextFieldCell"; title = "Ring is free software for universal communication which respects the freedoms and privacy of its users."; ObjectID = "eln-Vm-t0d"; */
+"eln-Vm-t0d.title" = "Ring is free software for universal communication which respects the freedoms and privacy of its users.";
 
 /* Class = "NSTextFieldCell"; placeholderString = "Category"; ObjectID = "gaf-Za-tuc"; */
 "gaf-Za-tuc.placeholderString" = "Category";