Addressed review comments.

...tests/src/test/java/org/briarproject/BlogManagerTest.java

...est/java/org/briarproject/BlogSharingIntegrationTest.java

.../src/test/java/org/briarproject/BriarIntegrationTest.java

...ests/src/test/java/org/briarproject/ForumManagerTest.java

...st/java/org/briarproject/ForumSharingIntegrationTest.java

...riarproject/introduction/IntroductionIntegrationTest.java

briar-tests/src/org/briarproject/BriarTestCase.java

briar-tests/src/org/briarproject/TestUtils.java