all: use gopkg.in/errgo.v1
Merge pull request #62 from rogpeppe/024-use-errgo.v1

all: use gopkg.in/errgo.v1
charm: implement MustParseReference
Merge pull request #63 from rogpeppe/025-mustparsereference

charm: implement MustParseReference
Metrics definition parsing.

Metrics loading in charm.
Merge pull request #64 from tasdomas/metrics_yaml

metrics.yaml support
* add support for Tags in a charm
* removed whitelist checking
* common parsing function for categories and tags
* parse categories and tags directly
Merge pull request #65 from urosj/v4

Add support for Tags in a charm.
testing/repo: rename wordpress bundle to wordpress-simple
Merge pull request #66 from rogpeppe/026-rename-wordpress-bundle

testing/repo: rename wordpress bundle to wordpress-simple
added metric key and value length validation

added check for multiple metric key definitions
more sensible value checking, remove name checking
removed the max value length const
improved the large metric value comment
strings.NewReader is more idiomatic than bytes.NewBuffer
Merge pull request #67 from mattyw/new=metric-validation

added metric validation steps
Slight refactoring of metered testing charms, specifying their names correctly.
Merge pull request #68 from tasdomas/metered-charms-fix

Slight refactoring of metered testing charms, specifying their names correctly.