* ✨ OPEN / CLOSE principle - open for extension but closed for modification. Allow the extension of city coordinates so that echarts-cities-pypkg can be installed, hence 138,398 city coordinations is added covering all countries in the world
* 🐛 what if no country data is returned
* 🔥 remove lazy object test
* 🎨 last resort, have to introduce country as a parameter to geo.add() function. no way to search for the coordinates without the country name.
* 📚 documentation update
* 📚 fix typos and add missing docstrings
* 🔬 more unit tests
* 💚 make unit test pass
* 🐛 without unicode_literals but with utf-8, all Chinese strings are utf-8 encoded, hence requires decoding.
* 🎨🔨 code refacotring and 📚 update documentation
* 🎨 finalized version
* 🔥 remove un-used function
* 🔨 change function parameter name: map_country -> coordinate_country
* 🔨 country -> region
* 🔨 country -> region
* 🚜 rename db file
* 🔨 whitening with black
* 📖 update dataset
* 📖 update data set country
* ✨ support nteract environment.
* 🔨 use temp file in system temp folder
* 🔬 test nteract function and update 📚
* 👕 whitening the code
* 📚 update demo and pump version number
* 📚 give reference to nteract.io
* 📚 update change log and 🐛 a bug fix on tmp file suffix
* ✨ initial prototype
* 🔨 replace extra_context with **kwargs
* ☔ test **kwargs
* 🔥 clean up the render.html
* ✨ initial prototype for tight integration of pyecharts-snapshot
* 🐛 fix rendering position in jupyter note book and 🔥 remove the prototype
* ✨ allow png, jpg and svg in jupyter notebook
* 🔥 revert optimization changes
* 🔥 get rid of useless code
* 🔥 get rid of useless code
* 📚 update documentation and fix#311
* 🔬 more test coverage
* 📚 update environment extension architecture
* 📚 more docs
* ✨ remove the need for configure() statement for python users. jupyter user have to use configure(). 🔨 replace extra_context with **kwargs finally
* 💚 fix broken unit test
* 📚 update documentation - space, space, space
* 🔬 more test coverage
* 📚 no support for rendering page as image
* 🔬 more test coverage
* ✨ @kinegratii create a jupyter image context
* 💚 make unit tests pass
* 👕 make flake8 happy
* 👕 one last space to be added
* 👕 address review feedbacks
