Version bump to v2.2.0.beta10

Version bump to v2.2.0.beta10

diff --git a/lib/version.rb b/lib/version.rb
index 9238a03..ee10f45 100644
--- a/lib/version.rb
+++ b/lib/version.rb
@@ -7,7 +7,7 @@ module Discourse
       MAJOR = 2
       MINOR = 2
       TINY  = 0
-      PRE   = 'beta9'
+      PRE   = 'beta10'
 
       STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
     end

GitHub sha: da4fc2e8