Merge pull request #64 from DerDummePunkt/bug_undefined_fields_custom_uid_field_custom_email_field

adds `custom_uid_field` and `custom_email_field` to RedmineOauth class.

Author: picman

lib/redmine_oauth.rb

@@ -197,6 +197,23 @@ def oauth_version
         ''
       end
     end
+
+    def custom_uid_field
+      if Setting.plugin_redmine_oauth['custom_uid_field'].present?
+        Setting.plugin_redmine_oauth['custom_uid_field'].strip
+      else
+        ''
+      end
+    end
+
+    def custom_email_field
+      if Setting.plugin_redmine_oauth['custom_email_field'].present?
+        Setting.plugin_redmine_oauth['custom_email_field'].strip
+      else
+        ''
+      end
+    end
+
   end
 end