* keywords are no longer than 20 characters, which is a restriction
cargo imposes
* don't use 'homepage' link in cargo.toml unless the homepage is
non-empty
* Added all publish-results to mark the respective crate version
Related to #46
Just to have another, different set of api information to deal with,
and not accidentally hard-code things to work with youtube only.
Prepared dealing with media uploads, and it turns out to be best to
adjust the 'doit()' to take the respective type parameter.
We also have to think about downloads, like the ones for google drive,
which requires custom query parameters.
