previously added to Untar, Unjar, Unwar and Unzip, so that these tasks stay
focussed on unarchival and nothing but it.
2. If the Src attribute represents a directory, an exception is thrown, as Stefan
suggested.  Nested Filesets to be used instead.
3. Testcase added to catch this exception.


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@269985 13f79535-47bb-0310-9956-ffa450edef68

2. Added 2 new attributes to these tasks - outfile and verbose
3. Nested Patternsets can be used to specify what files are to be extracted from within the archive.
4. Nested Filesets can be specified to select previously archived files for unarchival (PR: 3074)


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@269973 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@269839 13f79535-47bb-0310-9956-ffa450edef68

files newer than the entries in the archive will not be replaced.

Default is true for backwards compatibility.

PR: 1667


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@269394 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@268652 13f79535-47bb-0310-9956-ffa450edef68