redid bills UI, you can now choose CPI or FLAT X% as well, via a drop-down not a set of buttons. The changing of inflation also tweaks any bills using CPI, all works

TODO

@@ -1,11 +1,22 @@
+bills html, and growth types are very lame... could I do something more like:
+    {% for gt in growth %}
+        {% if gt.name == 'Min' %}
+            <option value='min'
+                {% if bt.which_growth == gt.name %}selected{% endif %}
+            >{{'%.2f'|format(bt.ann_growth_min)}}% {{gt.name}}</option>
+
+
 CALC:
     * if I quit at different times of the financial year, technically the amount I earn will be taxed
     differently, but hard to calc - slides around with tax brackets in future
 
 UI:
-    * allow changing comparison when in tab with graph of comparisons - remember to force redraw page and then come to graph again
-    * 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 ?
+    * to allow <yr> total on bill summary, need to re-work annual growth to a drop-down
+        - [DONE] mock-up
+        - need to change 'which growth' to accommodate new growth models (cpi, override*)
+            - [DONE] do this in DB with new table - then don't do crazy pattern matching/making up overrides in the UI code
+            - get UI to use bill_growth_types table 
+            - get UseGrowth() to use bill_growth_types table
 
 For bills:
     * might need to be able to mark a specific bill as an outlier: