chore(build): fix 'gulpDone' callback not called for 'umd' task
chore(build): fix 'gulpDone' callback not called for 'umd' task

tinesoft/ng2-scrollreveal,tinesoft/ng-scrollreveal,tinesoft/ng2-scrollreveal,tinesoft/ng2-scrollreveal,tinesoft/ng-scrollreveal