Add the following changes:
-remove multiple assert statements in test cases
-split each assert statement in different test methods with meaningful
test names

Fix some encoding problems
Fix merge conflict with the master branch

Add the following changes:
-move tests from IntegrityCheckTest to the appropriate Test classes
-remove multiple assert statements in different test methods
-fix the capitalization in TitleCheckerTest

Change two failing tests to succesfull
Remove one test

Add the following changes:
-Use checker.checkValue or checker.check instead of IntegrityCheckTest...
-Split a method with multiple assertion methods in FileCheckerTest into three different with a simple assertion method
-Rename a method in ASCIICharacterCheckerTest in order to use defined camel case

Add the following changes:
-Revert all methods from protected static to private
-Change BibtexKeyCheckerTest in order not to use IntegrityCheckTest's methods
-Add two tests methods that were moved to another class

Due to recent merges to master the JournalAbbreviationRepository constructor changed so the creation of the object changes as well.

Remove it wherever it was just creating objects

Remove unnecessary BibEntry initialization and import

Rework test class because checkstyle is failing

Fix because instance variable definition was in wrong order.

Change from multiple test methods to two parameterized with @MethodSource

Change the return type of two methods from String[] to Stream<String> since it is more readable.

Add the following changes:
-Add Javadoc
-Rewrite testAuthorNameChecks with @MethodSource