Update Selenium Driver for regexpi: match pattern
Update Selenium Driver for regexpi: match pattern

For matching string values, Selenium supports four pattern syntaxes,
glob, regexp, regexpi, and exact. This change adds support for regexpi,
a case insensitive regular-expression.

tronsha/phpunit,potherca-contrib/phpunit,MajorCaiger/phpunit,duncan3dc/phpunit,MartinhoOmura/phpunit,OndraM/phpunit,giorgiosironi/phpunit,chrisbjr/phpunit,lcp0578/phpunit,dshafik/phpunit,Maks3w/phpunit,asgrim/phpunit,FireWalkerX/phpunit,serbanghita/phpunit,malkusch/phpunit,simohammedhttp/phpunit,abachi/phpunit,nonconforme/phpunit,stof/phpunit,Firehed/phpunit,Lance0312/phpunit,m157y/phpunit,eelf/phpunit,beealone/phpunit,nelson6e65/phpunit,darol100/phpunit,9040044/phpunit,SunDrop/phpunit,bradgrohs/phpunit,apinstein/phpunit,s001dxp/phpunit,DonaldKellett/phpunit,kyale/phpunit,apinstein/phpunit,masarakki/phpunit,matheusgomes17/phpunit,HappyRay/phpunit,apinstein/phpunit,ya7lelkom/phpunit,WebSeed/phpunit,CarsonF/phpunit,imshibaji/phpunit,Ma27/phpunit,zhaoyan158567/phpunit,sebastianbergmann/phpunit,luomor/phpunit,abacaphiliac/phpunit,Shaked/phpunit,didiwuliu/phpunit,ezzatron/phpunit