[New Features]

• Selenium::Edge and Test::Selenium::Edge now exist
  
• Pass caller argument array as final arg to error_handler callbacks
  
• Add child() and children() aliases to Selenium::Remote::WebElements
  [BUG FIXES]
  
• Fixed Test::Selenium::* direct usage modules from getting undef method errors when acting on WebElements
  
• Fixed issue where capabilities could not be passed with Selenium::Firefox
  
• Make it actually possible for find_element_ok to fail without dying