ignore escrow shuffles
fix `test_ctime_comes_from_the_older_tip()`
create index on communities
simplify the `current_communities` view
simplify the "new participants" query
remove broken and unused function
Bump version to 15.0.14
Bump version to 15.0.14-dev
Merge pull request #2681 from gittip/fix-ctime-test

Fix `test_ctime_comes_from_the_older_tip()`
Merge pull request #2672 from gittip/ignore-escrow-shuffles

Ignore callbacks for escrow shuffles
Merge pull request #2682 from gittip/optimize-communities

Optimize communities
Bump version to 15.0.15
Bump version to 15.0.15-dev
Append branch.sql to schema.sql
Clean up the production db after #2673
do an actual RENAME instead of a DROP+ADD
clean up functions at the end of payin
Merge pull request #2689 from gittip/clean-up-prod-db

Clean up the production db after #2673
remove applied branch.sql
rename Gittip to Gratipay