refs #889 - added warning about using then() vs. waitFor*()
refs #889 - added warning about using then() vs. waitFor*()

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