message: Add default value for start_time and end_time columns (lib)
diff: @@ -121,7 +121,7 @@ error Migrations::migrateAutotracker() {
  err = db_->Migrate(
  "autotracker_settings.start_time",
  "alter table autotracker_settings"
  - " add column start_time varchar not null;");
  + " add column start_time varchar not null default '';");
  if (err != noError) {
  return err;
  }
  @@ -129,7 +129,7 @@ error Migrations::migrateAutotracker() {
  err = db_->Migrate(
  "autotracker_settings.end_time",
  "alter table autotracker_settings"
  - " add column end_time varchar not null;");
  + " add column end_time varchar not null default '';");
  if (err != noError) {
  return err;
  }
  