Merge pull request #63 from Stromweld/patch-1

official 4.0.0 release

Author: mfazekas

lib/net/scp/version.rb

@@ -56,7 +56,7 @@ def to_i
 
       # The prerelease component of this version of the Net::SSH library
       # nil allowed
-      PRE   = "rc1"
+      PRE   = nil
 
       # The current version of the Net::SSH library as a Version instance
       CURRENT = new(*[MAJOR, MINOR, TINY, PRE].compact)