[CI] upgrade php5-mongo to 1.6.10 for travis tests
[CI] upgrade php5-mongo to 1.6.10 for travis tests

kilip/YAWIK,kilip/YAWIK,cross-solution/YAWIK,kilip/YAWIK,cross-solution/YAWIK,kilip/YAWIK,cross-solution/YAWIK,cross-solution/YAWIK