CI only install required boost module
CI only install required boost module


Former-commit-id: 31abb94b3e451e4755ecce460c9d992cc8f94ff9
danielhers/dynet,shuheik/dynet,shuheik/dynet,chunyang-wen/dynet,clab/dynet,clab/dynet,clab/dynet,clab/cnn,shuheik/dynet,shuheik/dynet,chunyang-wen/dynet,danielhers/dynet,xunzhang/dynet,shuheik/dynet,xunzhang/dynet,clab/dynet,xunzhang/dynet,danielhers/dynet,chunyang-wen/dynet,danielhers/dynet,shuheik/dynet,danielhers/dynet,danielhers/dynet,clab/dynet,danielhers/dynet,shuheik/dynet,clab/dynet,chunyang-wen/dynet,clab/cnn,clab/dynet,xunzhang/dynet,clab/cnn