Add endpoint for apps which throw errors

@q3k, can you take a quick look at this and deploy it pretty please? :)

server_apps.go

@@ -343,6 +343,7 @@ func (s *server) getAppInfo(ctx context.Context, pathInRepo, repo string) (*appI
 	highestVer := 0
 	highsetVerNil := true
 	firstTime := make(map[int]*appInfo)
+	var firstErr error = nil
 	for {
 		info, err := s.parseAppToml(ctx, pathInRepo, obj)
 		if err == nil {
@@ -354,6 +355,9 @@ func (s *server) getAppInfo(ctx context.Context, pathInRepo, repo string) (*appI
 			}
 		} else {
 			log.Printf("%s@%s: %v", repo, obj.Hash.String(), err)
+			if firstErr == nil {
+				firstErr = err
+			}
 		}
 		if len(obj.ParentHashes) == 0 {
 			break
@@ -365,6 +369,9 @@ func (s *server) getAppInfo(ctx context.Context, pathInRepo, repo string) (*appI
 	}
 
 	if highsetVerNil {
+		if firstErr != nil {
+			return nil, firstErr
+		}
 		return nil, fmt.Errorf("no `version` field in `flow3r.toml`")
 	}
 	stars, err := s.getStars(ctx, repo)