[Bug] When a project depends on multiple projects loop exits too early.

[jtszalay]

When a project depends on multiple projects only the first detected non applied is provided in the message, rather than all of the non applied roots.

atlantis/server/events/command_requirement_handler.go

Lines 75 to 80 in ee1134f

	for _, project := range ctx.PullStatus.Projects {
	if project.ProjectName == dependOnProject && project.Status != models.AppliedPlanStatus && project.Status != models.PlannedNoChangesPlanStatus {
	return fmt.Sprintf("Can't apply your project unless you apply its dependencies: [%s]", project.ProjectName), nil
	}
	}