shinyjs v2.1.0

• New feature: you can now reset all inputs on the page by calling reset() with no arguments (#222)
• New feature: Add a removeEvent() function which removes events added to HTML elements with onclick() or onevent() (#244)
• Fix bug: disable() did not work on nested download buttons (#223)
• Fix bug: Don't automatically namespace ID arguments in custom extendShinyjs functions (#229)
• Fix bug: ensure that extendShinyjs() functions don't overwrite native {shinyjs} functions (#230)