Refs #482: new property phantom.casperEngine storing the engine name
Refs #482: new property phantom.casperEngine storing the engine name

It will easier in the code to know the current engine.

casperjs/casperjs,cryptoquick/casperjs,vietch2612/casperjs,artillery/casperjs,Andrey-Pavlov/casperjs,JZL/casperjs,cryptoquick/casperjs,vladikoff/casperjs,RobertoMalatesta/casperjs,jefleponot/casperjs,PeterWangPo/casperjs,vladikoff/casperjs,linkedin/casperjs,vietch2612/casperjs,soundyogi/casperjs,casperjs/casperjs,artillery/casperjs,PeterWangPo/casperjs,artillery/casperjs,mickaelandrieu/casperjs,ravindrasingh22/casperjs,JZL/casperjs,istr/casperjs,hexid/casperjs,jjyycchh/casperjs,hudl/casperjs,mcwonka/casperjs,casperjs/casperjs,alexbiehl/casperjs,mickaelandrieu/casperjs,hudl/casperjs,n1k0/casperjs,muntasir2000/casperjs,sircelsiussexy/casperjs,pbrazdil/casperjs,ravindrasingh22/casperjs,dj31416/casperjs,flyHe/casperjs,Andrey-Pavlov/casperjs,RobertoMalatesta/casperjs,joshuafcole/casperjs,hudl/casperjs,dj31416/casperjs,pbrazdil/casperjs,vietch2612/casperjs,muntasir2000/casperjs,vietch2612/casperjs,linkedin/casperjs,cryptoquick/casperjs,istr/casperjs,HienLeThi/Casperjs_Demo,RobertoMalatesta/casperjs,mcwonka/casperjs,Andrey-Pavlov/casperjs,davidwhthomas/casperjs,flyHe/casperjs,ravindrasingh22/casperjs,kyroskoh/casperjs,n1k0/casperjs,istr/casperjs,ravindrasingh22/casperjs,jefleponot/casperjs,davidwhthomas/casperjs,singhdev/casperjs,jjyycchh/casperjs,JZL/casperjs,joshuafcole/casperjs,HienLeThi/Casperjs_Demo,jamesanthonyferguson/casperjs,istr/casperjs,mickaelandrieu/casperjs,joshuafcole/casperjs,pbrazdil/casperjs,jamesanthonyferguson/casperjs,joshuafcole/casperjs,ravindrasingh22/casperjs,RobertoMalatesta/casperjs,dj31416/casperjs,RobertoMalatesta/casperjs,HienLeThi/Casperjs_Demo,PeterWangPo/casperjs,JZL/casperjs,hlr1983/casperjs,davidwhthomas/casperjs,mickaelandrieu/casperjs,davidwhthomas/casperjs,singhdev/casperjs,kyroskoh/casperjs,PeterWangPo/casperjs,jefleponot/casperjs,mcwonka/casperjs,flyHe/casperjs,muntasir2000/casperjs,singhdev/casperjs,linkedin/casperjs,RobertoMalatesta/casperjs,flyHe/casperjs,n1k0/casperjs,jjyycchh/casperjs,n1k0/casperjs,artillery/casperjs,hexid/casperjs,jamesanthonyferguson/casperjs,dj31416/casperjs,dj31416/casperjs,casperjs/casperjs,flyHe/casperjs,JZL/casperjs,dj31416/casperjs,pbrazdil/casperjs,hexid/casperjs,n1k0/casperjs,singhdev/casperjs,HienLeThi/Casperjs_Demo,kyroskoh/casperjs,sircelsiussexy/casperjs,cryptoquick/casperjs,alexbiehl/casperjs,soundyogi/casperjs,vietch2612/casperjs,davidwhthomas/casperjs,pbrazdil/casperjs,jamesanthonyferguson/casperjs,flyHe/casperjs,singhdev/casperjs,PeterWangPo/casperjs,mickaelandrieu/casperjs,cryptoquick/casperjs,hlr1983/casperjs,alexbiehl/casperjs,vladikoff/casperjs,jefleponot/casperjs,mcwonka/casperjs,sircelsiussexy/casperjs,mickaelandrieu/casperjs,HienLeThi/Casperjs_Demo,Andrey-Pavlov/casperjs,kyroskoh/casperjs,Andrey-Pavlov/casperjs,hexid/casperjs,HienLeThi/Casperjs_Demo,sircelsiussexy/casperjs,sircelsiussexy/casperjs,vietch2612/casperjs,muntasir2000/casperjs,soundyogi/casperjs,linkedin/casperjs,casperjs/casperjs,n1k0/casperjs,jamesanthonyferguson/casperjs,hlr1983/casperjs,alexbiehl/casperjs,alexbiehl/casperjs,hudl/casperjs,vladikoff/casperjs,artillery/casperjs,hexid/casperjs,jjyycchh/casperjs,kyroskoh/casperjs,istr/casperjs,artillery/casperjs,jjyycchh/casperjs,istr/casperjs,jefleponot/casperjs,soundyogi/casperjs,PeterWangPo/casperjs,kyroskoh/casperjs,soundyogi/casperjs,joshuafcole/casperjs,jamesanthonyferguson/casperjs,pbrazdil/casperjs,mcwonka/casperjs,mcwonka/casperjs,hexid/casperjs,alexbiehl/casperjs,hlr1983/casperjs,vladikoff/casperjs,jefleponot/casperjs,hlr1983/casperjs,jjyycchh/casperjs,muntasir2000/casperjs,linkedin/casperjs,cryptoquick/casperjs,sircelsiussexy/casperjs,Andrey-Pavlov/casperjs,hudl/casperjs,hlr1983/casperjs,JZL/casperjs,davidwhthomas/casperjs,muntasir2000/casperjs,casperjs/casperjs,ravindrasingh22/casperjs,joshuafcole/casperjs,soundyogi/casperjs,linkedin/casperjs