add: settings.py.example
fix: travis
add: is_placeholder check
Merge branch 'feature/account_placeholder_check' into develop
fix: requirements
add: repeate model
add: bower.json
add: bower_url tag
add: admin for repeate, fix blank=True
add: query_need_action
update: CommonStatus
add: create_transaction
Merge branch 'feature/repeat' into develop
add: query_most_source / query_most_target
update: most/frequence account / desc
update
fix: json
Merge branch 'feature/ui' into develop
add: datetime picker
fix: settings.example