Qteasy

- Added setting key validation in `qt.update_start_up_setting()` to prevent from invalid values if the key is in qt_config_kwargs
- improved print outs and return values of `qt.start_up_settings()`
- improved the way the start up setting file is written to always keep intro messages

What's Changed
* Quick bug fix to version 1.3.9 by shepherdpp in https://github.com/shepherdpp/qteasy/pull/184


**Full Changelog**: https://github.com/shepherdpp/qteasy/compare/1.3.8...1.3.9

- Added new features: now qteasy has multiple functions to access and modify start up setting file:
- Added new function `qt.start_up_settings()`, to access and print contents of start up settings file
- Added new function `qt.update_start_up_setting()`, to modify start up settings file
- Added new function `qt.remove_start_up_setting()`, to remove settings from the file
- Fixed bugs in trader TUI buy and sell orders, added error handling for wrong inputs

What's Changed
* Add features to facilitate checking and changing config files by shepherdpp in https://github.com/shepherdpp/qteasy/pull/183


**Full Changelog**: https://github.com/shepherdpp/qteasy/compare/1.3.7...1.3.8

- Added features in trader TUI:
- Added commands and short-cuts to manually place buy and sell orders
- Added commands and short-cuts to cancel submitted orders
- Added a new data table to display trade logs

What's Changed
* New Features - New table and commands in trader TUI by shepherdpp in https://github.com/shepherdpp/qteasy/pull/182


**Full Changelog**: https://github.com/shepherdpp/qteasy/compare/1.3.6...1.3.7

- Fixed bugs in command `orders` in trader CLI:
- now `orders` command selects symbols correctly
- now parameter `--time` works with value 'all' or 'a'
- Added new command `summary` that displays trading operations in given period in human readable way

What's Changed
* Qt bug fix by shepherdpp in https://github.com/shepherdpp/qteasy/pull/181


**Full Changelog**: https://github.com/shepherdpp/qteasy/compare/1.3.5...1.3.6

- Added new feature: now trader will save the latest operation status on the dist while exit, and will restore the status when re-enter
- Improved delete_account() function, now it will delete all account related files, including trade logs, trade records, and trader break points
- Other bug fixes and optimizations in trader

What's Changed
* new release with a few trader improvements by shepherdpp in https://github.com/shepherdpp/qteasy/pull/180


**Full Changelog**: https://github.com/shepherdpp/qteasy/compare/1.3.4...1.3.5

- Improved Live trade broker, added retry count before canceling submitted orders when live price is not available, reduced chance of order filling failure
- Corrected a mistake in grid trading example files, nan prices are now not written to strategy parameters

What's Changed
* Qt bug fixes to update to version 1.3.4 by shepherdpp in https://github.com/shepherdpp/qteasy/pull/179


**Full Changelog**: https://github.com/shepherdpp/qteasy/compare/1.3.3...1.3.4