* JschConfigSessionFactory: Open FileInputStream in try-with-resource
* CommandCatalog: Use StandardCharsets.UTF_8
* JGitTestUtil: Open auto-closeable resources in try-with-resource
* Use StandardCharsets.UTF_8 in tests
* InfoRefsServlet: Open OutputStreamWriter in try-with-resource
* IndexDiffWithSymlinkTest: Open InputStream in try-with-resource
* HugeFileTest: Open RandomAccessFile in try-with-resource
* Add a launcher for Java 7 tests
* Remove obsolete getRepositoryMethod from WorkingTreeIterator
* Fix NPE when WorkingTreeIterator does not have a repository set