Add postgres plugin
Update Makefile
Add README for postgres
Merge pull request #2 from koemu/master

Test case is corresponding to httpd stub.
Add postgres test
Fix binary name
Merge branch 'master' into postgres
Add database stub library to .travis.yml
Merge branch 'master' into postgres
Merge pull request #3 from mackerelio/postgres

Create postgres plugin
Starting develop linux plugin.
Add plack plugin
Merge pull request #5 from tatsuru/plack

Add plack plugin
improve-makefile
improve Makefile
update .travis.yml
use make all
refactoring spec and rules
Merge pull request #6 from mackerelio/improve-makefile

improve-makefile
Create object after setting parameters

Plugin didn't work. Not passwd by Reference?