1.15.0

Features

• allow to invoke terminal and cmd methods from extended commands
  [[ terminal::set_prompt(">>> ") ]]
• new API method invoke_key that allow to invoke shortcut, terminal.invoke_key('CTRL+L') will clear the terminal
• shift+backspace now do the same thing as backspace

Bugs

• fix wider characters in IE #380
• fix issue with number of characters when terminal is added to DOM after creation in IE
• fix scrolling on body in Safari
• fix exception when entering JSON with literal strings #389
• fix orphaned closing bracket on multiline echo #390
• fix whitespace insert after first character after first focus #391
• fix open link when click on url from exception