Use 4 spaces indentation in examples

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/csv/trunk@1610770 13f79535-47bb-0310-9956-ffa450edef68
Revert Java 7 diamond notation since JavaNCSS can't handle it

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/csv/trunk@1610772 13f79535-47bb-0310-9956-ffa450edef68
Use try-with-resource in examples

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/csv/trunk@1610781 13f79535-47bb-0310-9956-ffa450edef68
Use StandardCharsets class in user guide code examples, since it is more save than passing a string

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/csv/trunk@1610786 13f79535-47bb-0310-9956-ffa450edef68