Qteasy

A quick bug fix: Now pure digit strings are correctly parsed in the start-up configuration file

- removed deprecated pandas syntax from database.py and updated version requirements
- added qt level configure keys for Chinese font names in candle chart for different Operating systems respectively:
- `ZH_font_name_MAC` / `ZH_font_name_WIN` / `ZH_font_name_LINUX`
- added qt function and attributes:
- `get_start_up_settings()` / `start_up_config`
- corrected help messages for live trader users

What's Changed
* corrected mistakes by shepherdpp in https://github.com/shepherdpp/qteasy/pull/185


**Full Changelog**: https://github.com/shepherdpp/qteasy/compare/1.3.9...1.3.10

- 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