Recommend rustup on ubuntu/debian

See merge request memri/pod!52

Minimize dependencies

See merge request memri/pod!51

Now that we have content on the main site, better point there.

Because official rustup does this by default.

Otherwise, rust/cargo versions are just too old
to compile the dependencies of the project
(smallvec, rusqlite, etc).

Also, this is the officially recommended way
to install Rust in the community.

By default, warp includes multipart and websockets support.

We don't need either yet, so we might be better off
by not asking them in the first place (including time to compile).

use millisecond precision instead of nanosecond

See merge request memri/pod!50

use Integer nanoseconds to store DateTime

See merge request memri/pod!49

Update get edges

See merge request memri/pod!48

consider link-local addresses to be private

See merge request memri/pod!47

fix public IP check

See merge request memri/pod!46

create bulk_action endpoint

See merge request memri/pod!42

Public ip check2

See merge request memri/pod!45

# Conflicts:
#	src/main.rs

enforce foreign keys

See merge request memri/pod!44

# Conflicts:
#	src/internal_api.rs