added ability to delete comparison sets, also made future bills recalc for Hydunday/D_quit dependent future bills, this is not effectively functional -v1.0 :)

TODO

@@ -3,10 +3,8 @@ CALC:
     differently, but hard to calc - slides around with tax brackets in future
 
 UI:
-    * maybe a help/note/set of links somehow, to common things: e.g. macquarie int rate page, inflation source, etc.
-      - also then could effectively take those "notes" out of db.py and incorporate, so that when I update stuff it gets done right
-      - in fact, I *COULD* have a basic date check/workflow, e.g. its been more than X days since Y was updated, click here 
-            and it walks me through the manual update steps and when I finish its datestamped until next time
+   * I *COULD* have a basic date check/workflow, e.g. it now>last_update+14 (and its more than a paydate <- need to think that bit through)
+     then the question mark can be more prominent -> use an <alert> that suggests updating as per ?
 
 For bills:
     * if we change certain items on the finance page, need to re-do bills, e.g.