reconfigure for gradle, add unit tests, findbugs clean, checkstyle clean
Merge branch 'master' of https://github.com/stmansour/cross

Conflicts:
	src/main/java/CrosswordGUI.java
	src/main/java/Match.java
	src/main/java/MatchList.java
	src/main/java/Word.java
	src/main/java/WordList.java
	src/main/resources/puzzle07.txt
	src/main/resources/wordspp.txt
Merge branch 'master' of https://github.com/stmansour/cross

Tons of changes in this clone. Somehow out of sync. Fixing it up.