[rb] Dispatch form "submit" event on window to prevent a form double submission (#6373)
[rb] Dispatch form "submit" event on window to prevent a form double submission (#6373)

This fixes the Ruby bindings for issue #6361.
valfirst/selenium,joshmgrant/selenium,joshbruning/selenium,Dude-X/selenium,oddui/selenium,5hawnknight/selenium,joshmgrant/selenium,asashour/selenium,Ardesco/selenium,Dude-X/selenium,twalpole/selenium,SeleniumHQ/selenium,joshmgrant/selenium,joshmgrant/selenium,Ardesco/selenium,valfirst/selenium,Ardesco/selenium,asashour/selenium,twalpole/selenium,HtmlUnit/selenium,krmahadevan/selenium,asolntsev/selenium,jsakamoto/selenium,HtmlUnit/selenium,krmahadevan/selenium,titusfortner/selenium,Dude-X/selenium,Ardesco/selenium,oddui/selenium,SeleniumHQ/selenium,5hawnknight/selenium,SeleniumHQ/selenium,titusfortner/selenium,oddui/selenium,krmahadevan/selenium,krmahadevan/selenium,oddui/selenium,SeleniumHQ/selenium,lmtierney/selenium,lmtierney/selenium,Dude-X/selenium,Dude-X/selenium,asolntsev/selenium,valfirst/selenium,chrisblock/selenium,valfirst/selenium,chrisblock/selenium,HtmlUnit/selenium,SeleniumHQ/selenium,Ardesco/selenium,krmahadevan/selenium,asolntsev/selenium,chrisblock/selenium,titusfortner/selenium,twalpole/selenium,5hawnknight/selenium,jsakamoto/selenium,joshbruning/selenium,joshbruning/selenium,valfirst/selenium,lmtierney/selenium,Ardesco/selenium,Dude-X/selenium,twalpole/selenium,titusfortner/selenium,Dude-X/selenium,SeleniumHQ/selenium,valfirst/selenium,5hawnknight/selenium,chrisblock/selenium,jsakamoto/selenium,jsakamoto/selenium,lmtierney/selenium,Ardesco/selenium,oddui/selenium,jsakamoto/selenium,oddui/selenium,valfirst/selenium,krmahadevan/selenium,SeleniumHQ/selenium,asashour/selenium,titusfortner/selenium,chrisblock/selenium,asolntsev/selenium,joshmgrant/selenium,asashour/selenium,asolntsev/selenium,SeleniumHQ/selenium,HtmlUnit/selenium,valfirst/selenium,lmtierney/selenium,lmtierney/selenium,oddui/selenium,chrisblock/selenium,asashour/selenium,asashour/selenium,valfirst/selenium,oddui/selenium,titusfortner/selenium,HtmlUnit/selenium,krmahadevan/selenium,Ardesco/selenium,5hawnknight/selenium,joshmgrant/selenium,joshmgrant/selenium,joshbruning/selenium,oddui/selenium,titusfortner/selenium,asolntsev/selenium,joshmgrant/selenium,titusfortner/selenium,jsakamoto/selenium,twalpole/selenium,krmahadevan/selenium,joshbruning/selenium,asolntsev/selenium,SeleniumHQ/selenium,5hawnknight/selenium,joshbruning/selenium,HtmlUnit/selenium,twalpole/selenium,asolntsev/selenium,HtmlUnit/selenium,lmtierney/selenium,twalpole/selenium,chrisblock/selenium,joshmgrant/selenium,SeleniumHQ/selenium,chrisblock/selenium,asolntsev/selenium,jsakamoto/selenium,asashour/selenium,joshbruning/selenium,joshmgrant/selenium,joshbruning/selenium,chrisblock/selenium,titusfortner/selenium,HtmlUnit/selenium,lmtierney/selenium,5hawnknight/selenium,twalpole/selenium,HtmlUnit/selenium,twalpole/selenium,krmahadevan/selenium,joshmgrant/selenium,Dude-X/selenium,valfirst/selenium,titusfortner/selenium,SeleniumHQ/selenium,joshbruning/selenium,5hawnknight/selenium,titusfortner/selenium,Dude-X/selenium,Ardesco/selenium,jsakamoto/selenium,valfirst/selenium,5hawnknight/selenium,lmtierney/selenium,asashour/selenium,HtmlUnit/selenium,asashour/selenium,jsakamoto/selenium