get_id function do not guarantee same UUID with different path

[item4]

I'm using travis-ci for publish lektor.

If travis change build dir, lektor produce different id value (ctx.env.project.id).

See this code for detail

I think you may make way to fix project id or suggest to mitsuhiko to make unique id without path.

[goanpeca]

@item4 is this still a problem?

[jonasvp]

I ran across this bug on lektor-atom 0.3 as well - I moved the project on my disk and it ended up generating new IDs for all items in the RSS feed. Quite annoying for all my subscribers.

@item4 is quite correct as to the cause, since lektor-atom uses Lektor's project id in the item ID here. Maybe the ID generated by lektor-atom should be independent of Lektor's project id? Just using the path should be unique enough.