release v0.9.6

• add code arg to record_data
• add em entity info api
• update docs

release v0.9.5

release v0.9.5

improve jq data recorder

improve jq data recorder

1)add china etf data 2)add get_current_price api 3)docs

• add china etf data
• add get_current_price api
• docs

coin tick data and realtime trader examples

tag 0.0.4

Former-commit-id: d760b909f86512f66958b202334a9a271facfc95

fix bugs and more precise trading signals

fix bugs and more precise trading signals

mutiple security trader

• fix trader signals issue
• mutiple security trader
• fix charts

basic feature release

uniform data/api/factor/selector/trader for stock/coin/future and more