Odoo Server 10.saas~18 - en to zh_TW translation catalogue (2 entries)

note: module: mass_mailing_event
en: <span class="o_stat_text">Mail Attendees</span>
zh_TW: <span class="o_stat_text"> 寄給出席者 </span>

note: module: mass_mailing_event
en: Event
zh_TW: 活動
