added C5_ENVIRONMENT_ONLY constant to override commandline check
added C5_ENVIRONMENT_ONLY constant to override commandline check


Former-commit-id: 0f2a9f166964f267407fd0b3c57bceefc5c1b84f
hissy/concrete5,olsgreen/concrete5,biplobice/concrete5,biplobice/concrete5,a3020/concrete5,haeflimi/concrete5,deek87/concrete5,haeflimi/concrete5,mlocati/concrete5,hissy/concrete5,jaromirdalecky/concrete5,KorvinSzanto/concrete5,jaromirdalecky/concrete5,hissy/concrete5,deek87/concrete5,hissy/concrete5,biplobice/concrete5,triplei/concrete5-8,MrKarlDilkington/concrete5,mainio/concrete5,MrKarlDilkington/concrete5,MrKarlDilkington/concrete5,deek87/concrete5,haeflimi/concrete5,concrete5/concrete5,rikzuiderlicht/concrete5,KorvinSzanto/concrete5,biplobice/concrete5,haeflimi/concrete5,mlocati/concrete5,concrete5/concrete5,acliss19xx/concrete5,olsgreen/concrete5,acliss19xx/concrete5,jaromirdalecky/concrete5,rikzuiderlicht/concrete5,concrete5/concrete5,mainio/concrete5,rikzuiderlicht/concrete5,acliss19xx/concrete5,mainio/concrete5,mlocati/concrete5,olsgreen/concrete5,a3020/concrete5,deek87/concrete5,mlocati/concrete5,concrete5/concrete5,triplei/concrete5-8,KorvinSzanto/concrete5,jaromirdalecky/concrete5,triplei/concrete5-8