wip
bolt db works
add travis deps
save horizon with transactions
fix all iterator
port 117 fix to bolt
slight improvement by appending deltas first
Merge branch 'master' into bolt_json
117 patched in
Merge branch 'log_database' into boltdb
store less duplicate data in the indices
Merge branch 'master' into boltdb
concrete deltas
improve cost of bolt iterator
Merge branch 'master' into boltdb
Merge branch 'master' into boltdb
Cleanup based on comments
Optionalize the sync parameter
Merge branch 'master' into boltdb
Documentation and tests