kristofer/JavaExercism: lots of exercises in java... from https://github.com/exercism/java

lots of exercises in java... from https://github.com/exercism/java

DAWSON Carol 9d1cd51291 Remove redundant .keep file from wordcount fixes #330		9 lat temu
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example/java	[#89] Move problems under "exercises" dir	10 lat temu
main/java	Remove redundant .keep file from wordcount fixes #330	9 lat temu
test/java	Issue #167 : Refactored WordCountTest to have a setup method	9 lat temu