GLOBAL MARKETS-Asian shares wobble in early trade, euro sinks

* Euro touches 1-yr low ahead of this week's ECB meeting * Official China manufacturing data awaited * U.S. markets closed for Labor Day holiday By Lisa Twaronite TOKYO, Sept 1 (Reuters) - Asian shares balked at the starting gate on Monday, skittish in the face of a deepening Ukraine crisis, while the euro touched a fresh one-year low ahead of this week's European Central Bank meeting. Ukrainian President Petro Poroshenko warned a "full-scale war" was imminent if Russian