Enhancement - tips

- Added new tips file, in the correct format (unix fortune), with
  dummy entries.  If we are to support a "task tip" command in future
  versions, we need to start gathering the tips now.

i18n/tips.en-US

@@ -0,0 +1,5 @@
+%
+first tip
+%
+second tip
+%

src/Context.cpp

@@ -573,11 +573,6 @@ void Context::autoFilter (Task& t, Filter& f)
       {
         f.push_back (Att ("description", "has", *word));
         debug ("auto filter: " + att->first + ".has:" + *word);
-
-/*
-        f.push_back (Att ("annotation_*", "has", *word));
-        debug ("auto filter: annotation_*.has:" + *word);
-*/
       }
     }