RFR: 8281104: jar --create should create missing parent directories [v3]

[Christian Stein]

> Calling `jar --create --file a/b/foo.jar INPUT-FILES` should create missing parent directories (here `a/b`) on the default file system before storing the JAR file (here `foo.jar`) in the destination directory.

Christian Stein has updated the pull request incrementally with one additional commit since the last revision:

  Update help text of Compatibility Interface

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7327/files
  - new: https://git.openjdk.java.net/jdk/pull/7327/files/65105a36..f810c810

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7327&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7327&range=01-02

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7327.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7327/head:pull/7327

PR: https://git.openjdk.java.net/jdk/pull/7327