UPDATE 1-Bitcoin tests 15-month highs after 10% weekend jump <div>* Hopes for mainstream adoption, geopolitical risk at play (Updates price, adds trader comment, context)<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=RO6_C2Fhu8I:fCjI1FZEyG0:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=RO6_C2Fhu8I:fCjI1FZEyG0:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=RO6_C2Fhu8I:fCjI1FZEyG0:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=RO6_C2Fhu8I:fCjI1FZEyG0:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=RO6_C2Fhu8I:fCjI1FZEyG0:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/RO6_C2Fhu8I" height="1" width="1" alt=""></div> Posted by Reuters