Changes

Bug 1063 - Utilize own Uri and Uri.Encoded class w/ proper encoding and differentiating encoded/decoded variants by type [Part 1]

- Add immutable com.jogamp.common.net.Uri class impl. RFC 2396 w/ encoding of RFC 3986

- Class Uri.Encoded is used to represent encoded parts

- IOUtil: Remove unused methods (residing in Uri) and mark others deprecated (will move to Uri)

- Adopt usage of Uri: This must be completet in follow-up commits!

Bug 1063 - Uri.PATH_LEGAL: Remove reserved 'punct', encoding all reserved chars but '!', allows removal of PATH_MIN_LEGAL ; Add comment for Harmony values for review

Bug 1063 - Refine Uri and Uri.Encode ; Fix unit tests (passing on GNU/Linux, OSX and Windows)

- Refine Uri
  - remove System.err.print*
  - scheme is of type Encode

- Refine Uri.Encode
  - substring(..) shall return type Encode

- Fix unit tests (passing on GNU/Linux, OSX and Windows)

Bug 1063: Complete Uri impl. and adoption throughout GlueGen

- Uri:
  - Add error correction (fix) of path at ctor
    in case a a contained Uri is requested from an opaque one.
    The latter might come from URI/URL and is not properly encoded!
    See Uri.PARSE_HINT_FIX_PATH

  - Simplify conversion methods:
    - valueOf(URI/URL): Re-encode only if not opaque
    - getNativeFilePath() -> toFile()

  - Move IOUtil Uri related constants to class Uri

  - Add DEBUG and DEBUG_SHOWFIX

- Complete adoption of URI -> Uri changes
  - IOUtil, JarUtil and TempJarCache still holds some
    left over deprecated methods, which will be removed
    after officially starting 2.3.0 (JOGL dependencies)

  - Otherwise not URI utilization left

- Tests
  - Cleaned ip TestUri01 and TestUri03Resolving

  - TestUri03Resolving also tests URL -> Uri,
    and hence mentioned Uri.PARSE_HINT_FIX_PATH

Bump 2.3.0

Bug 1063: Further Uri completion - As a result of JOGL Uri adoption

Bug 1063: Uri: Refine API doc; Add create(Encoded ..) ; Provide common impl. for getNormalized(), getDirectory(), getParent() and getRelativeOf()

- Refine API doc
  - Add notion of {@code host} and {@code port} validation

- Add create(Encoded ..), allowing creation of variants w/o re-encoding

- Provide common impl. for getNormalized(), getDirectory(), getParent() and getRelativeOf()
  Above feature methods share common goals, hence use same implementation:
  - If opaque, cut-off query and merge after operation
  - cleanup path, i.e. /dummy/../test/ -> /test/
  - cutoff file, dir - if requested
  - append optional appendix and cleanup again

  Return behavior various thought, i.e. null, this or allow exception.

Enhanced test of above features.

Bug 1067 - IOUtil.testDirExec(File) needs to preserve SPACE in exetst.getCanonicalPath() command

Having a test-executable file with SPACE in it's temporary path,
e.g.
  Unix:       /magic temp/user/
  Windows XP: C:\Documents and Settings\user\temp

results to split up commands if using
'Process.exec(String)', since it utilizes
a StringTokenizer to assemble the command String[].

This patch uses 'Process.exec(String[])' avoiding
splitting up SPACE in the full command string/path.

Major impact is on 'Windows XP',
where a SPACE separated TEMP/TMP folder is the default.

Note-1: Commit 9bc3d3f78bb2fb1aa0ccfb02ffb5bdda74420cac
introduced testing executable permission on Windows (Bug 1015)
and rendered this issue visible.

To reproduce the issue on Windows:
+++
set TEMP=C:\Documents and Settings\jogamp\temp
set TMP=C:\Documents and Settings\jogamp\temp
"C:\Program Files (x86)\Mozilla Firefox\firefox.exe"
+++

Note-2: This bug affects all platforms!