Issue 18394: Changed ORM for CurrencyRate.
issue #19549: got maintenance scripts working with the new locations
issue #19549: unified update.sh
Issue 18394: Merged picker changes from pull request to master
Issue 18394: Manually merged changes from pull request in other repo
issue #19438: very simple model test using zombie
Merge pull request #15 from shackbarth/19438

issue #19438: very simple model test using zombie
Issue 18394: Manually merged changes from pull request in other repo
Merge pull request #13 from shackbarth/19549

issue #19549: fixed maintenance paths
Issue 18394: Removed .DS_store from pull request
Merge pull request #16 from lynnaloo/18394

18394 - Currency Widget