made the pack completely portable and wrote relevent bat files to go with it

gitportable/mingw64/share/doc/git-doc/RelNotes/1.5.2.adoc

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+GIT v1.5.2 Release Notes
+========================
+
+Updates since v1.5.1
+--------------------
+
+* Plumbing level superproject support.
+
+  You can include a subdirectory that has an independent git
+  repository in your index and tree objects of your project
+  ("superproject").  This plumbing (i.e. "core") level
+  superproject support explicitly excludes recursive behaviour.
+
+  The "subproject" entries in the index and trees of a superproject
+  are incompatible with older versions of git.  Experimenting with
+  the plumbing level support is encouraged, but be warned that
+  unless everybody in your project updates to this release or
+  later, using this feature would make your project
+  inaccessible by people with older versions of git.
+
+* Plumbing level gitattributes support.
+
+  The gitattributes mechanism allows you to add 'attributes' to
+  paths in your project, and affect the way certain git
+  operations work.  Currently you can influence if a path is
+  considered a binary or text (the former would be treated by
+  'git diff' not to produce textual output; the latter can go
+  through the line endings conversion process in repositories
+  with core.autocrlf set), expand and unexpand '$Id$' keyword
+  with blob object name, specify a custom 3-way merge driver,
+  and specify a custom diff driver.  You can also apply
+  arbitrary filter to contents on check-in/check-out codepath
+  but this feature is an extremely sharp-edged razor and needs
+  to be handled with caution (do not use it unless you
+  understand the earlier mailing list discussion on keyword
+  expansion).  These conversions apply when checking files in
+  or out, and exporting via git-archive.
+
+* The packfile format now optionally supports 64-bit index.
+
+  This release supports the "version 2" format of the .idx
+  file.  This is automatically enabled when a huge packfile
+  needs more than 32-bit to express offsets of objects in the
+  pack.
+
+* Comes with an updated git-gui 0.7.1
+
+* Updated gitweb:
+
+  - can show combined diff for merges;
+  - uses font size of user's preference, not hardcoded in pixels;
+  - can now 'grep';
+
+* New commands and options.
+
+  - "git bisect start" can optionally take a single bad commit and
+    zero or more good commits on the command line.
+
+  - "git shortlog" can optionally be told to wrap its output.
+
+  - "subtree" merge strategy allows another project to be merged in as
+    your subdirectory.
+
+  - "git format-patch" learned a new --subject-prefix=<string>
+    option, to override the built-in "[PATCH]".
+
+  - "git add -u" is a quick way to do the first stage of "git
+    commit -a" (i.e. update the index to match the working
+    tree); it obviously does not make a commit.
+
+  - "git clean" honors a new configuration, "clean.requireforce".  When
+    set to true, this makes "git clean" a no-op, preventing you
+    from losing files by typing "git clean" when you meant to
+    say "make clean".  You can still say "git clean -f" to
+    override this.
+
+  - "git log" family of commands learned --date={local,relative,default}
+    option.  --date=relative is synonym to the --relative-date.
+    --date=local gives the timestamp in local timezone.
+
+* Updated behavior of existing commands.
+
+  - When $GIT_COMMITTER_EMAIL or $GIT_AUTHOR_EMAIL is not set
+    but $EMAIL is set, the latter is used as a substitute.
+
+  - "git diff --stat" shows size of preimage and postimage blobs
+    for binary contents.  Earlier it only said "Bin".
+
+  - "git lost-found" shows stuff that are unreachable except
+    from reflogs.
+
+  - "git checkout branch^0" now detaches HEAD at the tip commit
+    on the named branch, instead of just switching to the
+    branch (use "git checkout branch" to switch to the branch,
+    as before).
+
+  - "git bisect next" can be used after giving only a bad commit
+    without giving a good one (this starts bisection half-way to
+    the root commit).  We used to refuse to operate without a
+    good and a bad commit.
+
+  - "git push", when pushing into more than one repository, does
+    not stop at the first error.
+
+  - "git archive" does not insist you to give --format parameter
+    anymore; it defaults to "tar".
+
+  - "git cvsserver" can use backends other than sqlite.
+
+  - "gitview" (in contrib/ section) learned to better support
+    "git-annotate".
+
+  - "git diff $commit1:$path2 $commit2:$path2" can now report
+    mode changes between the two blobs.
+
+  - Local "git fetch" from a repository whose object store is
+    one of the alternates (e.g. fetching from the origin in a
+    repository created with "git clone -l -s") avoids
+    downloading objects unnecessarily.
+
+  - "git blame" uses .mailmap to canonicalize the author name
+    just like "git shortlog" does.
+
+  - "git pack-objects" pays attention to pack.depth
+    configuration variable.
+
+  - "git cherry-pick" and "git revert" does not use .msg file in
+    the working tree to prepare commit message; instead it uses
+    $GIT_DIR/MERGE_MSG as other commands do.
+
+* Builds
+
+  - git-p4import has never been installed; now there is an
+    installation option to do so.
+
+  - gitk and git-gui can be configured out.
+
+  - Generated documentation pages automatically get version
+    information from GIT_VERSION.
+
+  - Parallel build with "make -j" descending into subdirectory
+    was fixed.
+
+* Performance Tweaks
+
+  - Optimized "git-rev-list --bisect" (hence "git-bisect").
+
+  - Optimized "git-add $path" in a large directory, most of
+    whose contents are ignored.
+
+  - Optimized "git-diff-tree" for reduced memory footprint.
+
+  - The recursive merge strategy updated a worktree file that
+    was changed identically in two branches, when one of them
+    renamed it.  We do not do that when there is no rename, so
+    match that behaviour.  This avoids excessive rebuilds.
+
+  - The default pack depth has been increased to 50, as the
+    recent addition of delta_base_cache makes deeper delta chains
+    much less expensive to access.  Depending on the project, it was
+    reported that this reduces the resulting pack file by 10%
+    or so.
+
+
+Fixes since v1.5.1
+------------------
+
+All of the fixes in v1.5.1 maintenance series are included in
+this release, unless otherwise noted.
+
+* Bugfixes
+
+  - Switching branches with "git checkout" refused to work when
+    a path changes from a file to a directory between the
+    current branch and the new branch, in order not to lose
+    possible local changes in the directory that is being turned
+    into a file with the switch.  We now allow such a branch
+    switch after making sure that there is no locally modified
+    file nor un-ignored file in the directory.  This has not
+    been backported to 1.5.1.x series, as it is rather an
+    intrusive change.
+
+  - Merging branches that have a file in one and a directory in
+    another at the same path used to get quite confused.  We
+    handle such a case a bit more carefully, even though that is
+    still left as a conflict for the user to sort out.  This
+    will not be backported to 1.5.1.x series, as it is rather an
+    intrusive change.
+
+  - git-fetch had trouble with a remote with insanely large number
+    of refs.
+
+  - "git clean -d -X" now does not remove non-excluded directories.
+
+  - rebasing (without -m) a series that changes a symlink to a directory
+    in the middle of a path confused git-apply greatly and refused to
+    operate.