* Asterisk app: add IAX2 peer graphs
* It's an entirely new graph and will not break existing graphs.
* The asterisk extend script must be updated to provide the appropriate poller data.
* The PR for librenms-agent/snmp/asterisk is here: https://github.com/librenms/librenms-agent/pull/274
* code climate, round 1
* clarified unit text
* code climate, round 2
* changes needed to properly generate test data
* linux_asterisk-v1 test data
hopefully doesn't break anything
Mostly issues with snmp oids and options containing spaces. Try to remove all of those.
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#### Please note
> Please read this information carefully. You can run `./scripts/pre-commit.php` to check your code before submitting.
- [x] Have you followed our [code guidelines?](http://docs.librenms.org/Developing/Code-Guidelines/)
#### Testers
If you would like to test this pull request then please run: `./scripts/github-apply <pr_id>`, i.e `./scripts/github-apply 5926`
PR 183 from librenms-agent contains the script to make this work
https://github.com/librenms/librenms-agent/pull/183
Jellyfrog
Tony Murray
Joseph Tingiris
TheGreatDoc