Fix broken test using default buffer_chunk_limit
Lock dependent gems for safe use
Bump version 0.6.8
Remove useless assert
Fix invalid use of '~>' for gem dependency
Bump version 0.6.9
Fix capped checking for 2.1.x or later version.
Always flush for pipeline usage in mongo-tail. fixes #16
Bump version 0.6.10
Use buildInfo instead of serverStatus to check version

 - serverStatus command requires admin access
Merge pull request #20 from Oscil8/master

Use buildInfo instead of serverStatus to check version
Bump version 0.6.11
Fix capped check of mongo_tail
Add wait_time to mongo_tail
Bump version 0.6.12
Add exclude_broken_fields parameter to output plugins. fixed #22
Bump version 0.6.13
Upgrade mongo gem to version 1.8
Bump version 0.7.0
Delete mongo_backup output