Available version check

[ibilon]

I'm pretty sure (from experience) that most people don't know about self-update and end up using the bundled haxelib until the next haxe version.

We should really indicate to the user when a new version of haxelib is available.

A new version (X.Y.Z) of haxelib is available.
Do "haxelib selfupdate" to get the latest version.

/normal output/

The test would be quick, getting something like http://lib.haxe.org/latestVersion/haxelib which would contain only the semver (so very light).
It would be at least on the commands that already connect to the internet, and we should probably cache the result too.

That way we can really send bug fixes and improvements.

I think it's important to ship that feature with haxe 3.3.

[nadako]

Good idea! Though I think it would be easier to implement a method in SiteApi instead of a http request.

[ibilon]

Forgot about that but yes you're right.

[ncannasse]

Sounds like a good idea, but not on "path" please :) (used for every compilation)

[nadako]

Yeah, as discussed and implemented in #283, it's done only for net commands

[nadako]

Done in b779136 (BTW @ibilon: you can use closes #<issuenum> in commit messages to automatically close issues when it gets merged)

[ibilon]

I know, just completely forgot about this issue even though I opened it :)

Thanks for closing it.