chore(constants): IONIC_ENV and related constants are back
chore(constants): IONIC_ENV and related constants are back

michaelgeorgeattard/ionic-app-scripts,michaelgeorgeattard/ionic-app-scripts,rolandjitsu/ionic-app-scripts,rolandjitsu/ionic-app-scripts,driftyco/ionic-app-scripts,michaelgeorgeattard/ionic-app-scripts,driftyco/ionic-app-scripts,driftyco/ionic-app-scripts,rolandjitsu/ionic-app-scripts