Add yield keyword in getPhpReservedWords
Add yield keyword in getPhpReservedWords

AriaSystems/Propel,tbl0605/Propel-pervasive,mhitza/Propel,sh0dow/Propel,Egston/Propel,Egston/Propel,bjdelange/Propel,PatidarWeb/Propel,mhitza/Propel,gencer/Propel,propelorm/Propel,halfer/Propel,sh0dow/Propel,PatidarWeb/Propel,gencer/Propel,zachmay/Propel,bjdelange/Propel,rozwell/Propel,tbl0605/Propel-pervasive,AriaSystems/Propel,rozwell/Propel,propelorm/Propel,zachmay/Propel,halfer/Propel