Support log_level option of Fleuntd v0.10.43
version bump v0.1.4
support log_level
add Gemfile for fluentd <0.10.43
Merge branch 'log_level'
version bump 0.1.5
add_development_dependency "octorelease"
Merge pull request #13 from sonots/octorelease

add_development_dependency "octorelease"
fix so that log_level effectively works in ChangeFinder
Merge remote-tracking branch 'sonots/fix_log_level_change_finder'
version bump 0.1.6
Add a link to Fluentd.org
Merge pull request #15 from kiyoto/master

Add a link to fluentd.org in README
fix .travis.yml to drop 1.9.2 and add 2.1