Adding sample tests for the Person and People resources.
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small cleaning
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added DropwizardClientRule
fixed sample code in javadoc
resolved wildcard imports
#712 Improved 'Testing Applications' example
Merge pull request #716 from mhurne/master

Corrected 'Testing Applications' example, fixes #712
Add empty default implementation of Application#initialize()

Not every Dropwizard application needs to customize the bootstrapping phase,
so implementing Application#initialize() should be optional.

Fixes #689
Extract DropwizardAppRuleTest#resourceFilePath into ResourceHelpers class

Fixes #708
Merge branch 'master' of github.com:anikiej/dropwizard into anikiej-master
Add unit tests for {Person,People}Resource in dropwizard-example

Closes #688
Merge branch 'client-testing' of github.com:t1/dropwizard into t1-client-testing
Code style and Javadoc fixes for DropwizardClientRule
Add section about DropwizardClientRule to docs
Remove CachingAuthenticator#wrap, closes #714