v0.6.0: dev-0.6.0 (#78)
* INSTALL * make ttl::range less generic * ttl::copy * --with-cuda * add .size() and .dims() to tensor types (#79) * add size method to tensor * dims() * deprecate from_host, to_host (#80) * support customize install prefix
* INSTALL * make ttl::range less generic * ttl::copy * --with-cuda * add .size() and .dims() to tensor types (#79) * add size method to tensor * dims() * deprecate from_host, to_host (#80) * support customize install prefix