shinyFiles 0.7.1
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* Close modal on ESC (@vnijs)

* Force file selection on double click (@AFriendlyRobot [PR95](https://github.com/thomasp85/shinyFiles/pull/95))

* `shinyFiles` now uses the [fs](https://github.com/r-lib/fs) package and works with Chinese, Russian, etc. characters (@vnijs [PR92](https://github.com/thomasp85/shinyFiles/pull/92))

* Use select file type icons from Rstudio with permission (@vnijs [PR86](https://github.com/thomasp85/shinyFiles/pull/86))
