Issue #287 Remove the match capture
Remove paren in the output string
Clean up logline_decoder captures

- Fail MatchRegex configurations with no capture groups
- Remove the Submatch/SubexpNames bounds check
Close the profFile

Opened file should be closed.
Merge pull request #289 from golanger/patch-1

Close the profFile
Remove additional references to the match captures

- Update the lua and plugin docs
- Correct the output plugin format string
Add a note about how to build from the dev branch
Merge pull request #290 from mozilla-services/docs/makedev

Add a note about how to build from the dev branch
Merge pull request #288 from mozilla-services/issue_287

Issue #287 Remove the match capture
Merge branch 'dev' into features/es-output-docs