using gcc-4.9 for travis-ci
using gcc-4.9 for travis-ci

Rapotkinnik/libcds,elventear/libcds,xinghuwang/libcds,xinghuwang/libcds,elventear/libcds,eugenyk/libcds,goswamia/libcds,xinghuwang/libcds,hanbinhu/libcds,Rapotkinnik/libcds,elventear/libcds,goswamia/libcds,elventear/libcds,eugenyk/libcds,Rapotkinnik/libcds,hanbinhu/libcds,xinghuwang/libcds,eugenyk/libcds,Rapotkinnik/libcds,Rapotkinnik/libcds,hanbinhu/libcds,xinghuwang/libcds,eugenyk/libcds,goswamia/libcds,hanbinhu/libcds,eugenyk/libcds,elventear/libcds,hanbinhu/libcds,goswamia/libcds,goswamia/libcds