fixed error when setting userAgent() casper being not started
fixed error when setting userAgent() casper being not started

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