The end year is legally and functionally redundant, and more importantly causes
cherry-pick conflicts when trying to maintain old branches. Use git for history.
The logic here is that we can use one central session for all client actions.
Also, set the user agent for the *runtime* version of fwupd -- it's the runtime
version we use when checking capabilities, rather than the built-against
version. This would also explain why there are so many very obsolete versions
of fwupd being recorded on the LVFS...
The returned ID is the result of the SHA1 hash of the actual device ID. This
does not match anything found by the client, and so the install fails.
The symbol is exported as I think the device ID is an important identifier and
used in various fwupd tools.
When backported to the stable branch the verification should just be a static
function in src/fu-engine.c rather than a new symbol.
This feature is turned on with the new fwupdtool option `--enable-json-state`
The intended use case is for ChromeOS to be able to save information about
devices on the system when `fwupdtool update` was run to display in the UX at
a later time.
This also allows us to write mixed-endian structures and adds tests. As part of
this commit we've also changed the API of something that's not yet been in any
tarball release, so no pitchforks please.
