Dashboard JSON Docs

Removed unnecessary components.

Fixed typo in OpenTSDB's "metasync" documentation

Add templating explanation to CloudWatch docs.

Update opentsdb.md

Fix npm 3 build failure in phantomjs task

As we merged, changes with auto suggestions in the master branch. Update docs respectively.

npm v3.0+ by default dedupes node modules and stores them in a flat
tree, which means the hardcoded path to the location.js will no longer
be nested under the karma-phantomjs-launcher module.

This fixes issue #2999.

Tag suggestions fixed for v2.1.1 & above by using Suggest Api.

Fixed some more typos in docs

Correct object key typo

Should be ‘message’ not ‘messsage’.

Merge branch 'prometheus-fix_step_calculation' of https://github.com/dan-cleinmark/grafana into dan-cleinmark-prometheus-fix_step_calculation

fix(cloudwatch): fixed limiting of cloudwatch period so it works for long time ranges in all cases, fixes #3086

fix(influxdb): fixed handling of relative time ranges like last x years, or last x months, fixes #3067

Using a 2 week window (1209600 seconds) and a 60s step, Math.floor()
recalculates a step of 109 and results in 11097 data points in the
Prometheus query (> the 11000 max set by Prometheus). Math.ceil()
returns a step of 110 and 10996 data points.

feat(elasticsearch): Annotation queries now use the daily index patterns defined in data source options, for old annotations that have an index property that will be used, so will not break existing dashboard/annotation configs, closes #3061

fix panel repeat for cloudwatch