DropwizardAppRule should not require a configPath to operate.
Test for DropwizardAppRule with no (null) configPath
Change tabs to spaces.
Merge pull request #544 from blacklocus/master

DropwizardAppRule should not require a configPath to operate.
Merge pull request #551 from varunl/tabs_to_spaces

Change tabs to spaces.
Merge remote-tracking branch 'upstream/master'
adding other committers