* Switch cmd/amtool to kingpin
* Touch-ups
* Implement long help
* Add missing short-form of --output
* Fix backwards compatibility for config file options
* Fix vendoring
* Review fixes
* Fix flag word order
Found that we are only defining MarshalJSON for the Regexp type for
references not for the direct object
Also took the time to simplify the json.Unmarshal usage in cli/config.go
* Implement alertmanager cli tool 'amtool'
The primary goal of an alertmanager tool is to provide a cli interface
for the prometheus alertmanager.
My vision for this tool has two parts:
- Silence management (query, add, delete)
- Alert management (query, maybe more in future?)
Resolves: #567
Calle Pettersson
Jose Donizetti
Frederic Branczyk
Kellen Fox
Kellen Fox