0.0.4 / 2015-09-09

• [BUGFIX] Fix version info string in startup message.
• [BUGFIX] Fix Pushover notifications by setting the right priority level, as
  well as required retry and expiry intervals.
• [FEATURE] Make it possible to link to individual alerts in the UI.
• [FEATURE] Rearrange alert columns in UI and allow expanding more alert details.
• [FEATURE] Add Amazon SNS notifications.
• [FEATURE] Add OpsGenie Webhook notifications.
• [FEATURE] Add -web.external-url flag to control the externally visible
  Alertmanager URL.
• [FEATURE] Add runbook and alertmanager URLs to PagerDuty and email notifications.
• [FEATURE] Add a GET API to /api/alerts which pulls JSON formatted
  AlertAggregates.
• [ENHANCEMENT] Sort alerts consistently in web UI.
• [ENHANCEMENT] Suggest to use email address as silence creator.
• [ENHANCEMENT] Make Slack timeout configurable.
• [ENHANCEMENT] Add channel name to error logging about Slack notifications.
• [ENHANCEMENT] Refactoring and tests for Flowdock notifications.
• [ENHANCEMENT] New Dockerfile using alpine-golang-make-onbuild base image.
• [CLEANUP] Add Docker instructions and other cleanups in README.md.
• [CLEANUP] Update Makefile.COMMON from prometheus/utils.