Result of misspellings run.

Most of these are comments but a few are strings for users.

Might be an idea to run this from time to time:
https://github.com/lyda/misspell-check

It runs mostly clean now.

spec/requests/api/users_spec.rb

@@ -300,7 +300,7 @@ describe Gitlab::API do
       response.status.should == 200
     end
 
-    it "should return sucess if key ID not found" do
+    it "should return success if key ID not found" do
       delete api("/user/keys/42", user)
       response.status.should == 200
     end