Remove wrong (premature) optimization that prevents weightings of zero
being saved again
Pretty weights only show non-zero items
Fixup new period error rendering if no events yet occurred
Display all tags in weightings irrespective of weighting
Remove 'weighting' behaviour partially, add detailed tag data
Allow future events to be entered without affecting account balance
Use humanized money symbol
Remove weightings concept completely
Remove more weightings remnants
Redo safe querying of account data
Refactor into taggedOut, rather than 3 seperate queries
Bump rails to 3.2.14, assorted asset faffery
Upgrade rails to 3.2.19, update jquery asseting
Remove more weightings stuff
Unbreak periods form
Set attr_accesible on period
Handle excluded tags
Add 'effective balance' value
Fix problems with new tzinfo
Add period carries backend add/remove/update ability