Fix node.js handling of multi-byte UTF8 characters (#6761)
Fix node.js handling of multi-byte UTF8 characters (#6761)

* Fix node.js handling of multi-byte UTF8 characters

Fixes issue #6280, where the node.js API doesn't properly handle
multi-byte UTF8 characters received from the driver.

* Specify encoding in toString

Dude-X/selenium,valfirst/selenium,Ardesco/selenium,SeleniumHQ/selenium,asolntsev/selenium,chrisblock/selenium,titusfortner/selenium,valfirst/selenium,HtmlUnit/selenium,SeleniumHQ/selenium,joshbruning/selenium,Dude-X/selenium,Ardesco/selenium,HtmlUnit/selenium,joshmgrant/selenium,Ardesco/selenium,lmtierney/selenium,titusfortner/selenium,joshmgrant/selenium,joshbruning/selenium,HtmlUnit/selenium,SeleniumHQ/selenium,HtmlUnit/selenium,titusfortner/selenium,SeleniumHQ/selenium,valfirst/selenium,joshmgrant/selenium,Ardesco/selenium,titusfortner/selenium,titusfortner/selenium,HtmlUnit/selenium,joshbruning/selenium,chrisblock/selenium,valfirst/selenium,joshmgrant/selenium,oddui/selenium,titusfortner/selenium,joshbruning/selenium,Ardesco/selenium,lmtierney/selenium,Dude-X/selenium,SeleniumHQ/selenium,titusfortner/selenium,oddui/selenium,titusfortner/selenium,joshmgrant/selenium,joshmgrant/selenium,chrisblock/selenium,joshbruning/selenium,joshbruning/selenium,oddui/selenium,asolntsev/selenium,SeleniumHQ/selenium,Dude-X/selenium,joshbruning/selenium,asolntsev/selenium,joshmgrant/selenium,Ardesco/selenium,HtmlUnit/selenium,valfirst/selenium,valfirst/selenium,SeleniumHQ/selenium,lmtierney/selenium,valfirst/selenium,titusfortner/selenium,chrisblock/selenium,Dude-X/selenium,chrisblock/selenium,oddui/selenium,SeleniumHQ/selenium,lmtierney/selenium,asolntsev/selenium,HtmlUnit/selenium,valfirst/selenium,asolntsev/selenium,valfirst/selenium,HtmlUnit/selenium,Ardesco/selenium,chrisblock/selenium,oddui/selenium,lmtierney/selenium,joshmgrant/selenium,joshbruning/selenium,Dude-X/selenium,asolntsev/selenium,lmtierney/selenium,Dude-X/selenium,Ardesco/selenium,SeleniumHQ/selenium,oddui/selenium,Dude-X/selenium,titusfortner/selenium,joshmgrant/selenium,HtmlUnit/selenium,SeleniumHQ/selenium,asolntsev/selenium,chrisblock/selenium,HtmlUnit/selenium,asolntsev/selenium,joshmgrant/selenium,lmtierney/selenium,oddui/selenium,asolntsev/selenium,valfirst/selenium,SeleniumHQ/selenium,titusfortner/selenium,Dude-X/selenium,oddui/selenium,chrisblock/selenium,lmtierney/selenium,joshbruning/selenium,chrisblock/selenium,lmtierney/selenium,joshmgrant/selenium,valfirst/selenium,oddui/selenium,Ardesco/selenium