Throwing out CharmConfig from indexing.
internal/charmstore: remove entity if ES insert fails
Merge branch 'v4' of https://github.com/juju/charmstore into v4
Merge pull request #196 from urosj/v4

Throwing out CharmConfig from indexing.
Merge pull request #199 from rogpeppe/085-fix-add-entity

internal/charmstore: remove entity if ES insert fails