memory allocator
memory allocator


Former-commit-id: 3b1a5b91f5e69d640da37fa00ae0c42a3fca782d
clab/dynet,danielhers/dynet,chunyang-wen/dynet,clab/dynet,danielhers/dynet,danielhers/dynet,clab/dynet,shuheik/dynet,danielhers/dynet,shuheik/dynet,clab/cnn,xunzhang/dynet,shuheik/dynet,clab/dynet,clab/dynet,clab/cnn,shuheik/dynet,chunyang-wen/dynet,danielhers/dynet,shuheik/dynet,danielhers/dynet,chunyang-wen/dynet,danielhers/dynet,xunzhang/dynet,clab/cnn,xunzhang/dynet,clab/dynet,clab/dynet,chunyang-wen/dynet,shuheik/dynet,shuheik/dynet,xunzhang/dynet