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

gitportable/mingw64/share/doc/git-doc/RelNotes/1.7.0.2.adoc

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+Git v1.7.0.2 Release Notes
+==========================
+
+Fixes since v1.7.0.1
+--------------------
+
+ * GIT_PAGER was not honored consistently by some scripted Porcelains, most
+   notably "git am".
+
+ * updating working tree files after telling git to add them to the
+   index and while it is still working created garbage object files in
+   the repository without diagnosing it as an error.
+
+ * "git bisect -- pathspec..." did not diagnose an error condition properly when
+   the simplification with given pathspec made the history empty.
+
+ * "git rev-list --cherry-pick A...B" now has an obvious optimization when the
+   histories haven't diverged (i.e. when one end is an ancestor of the other).
+
+ * "git diff --quiet -w" did not work as expected.
+
+ * "git fast-import" didn't work with a large input, as it lacked support
+   for producing the pack index in v2 format.
+
+ * "git imap-send" didn't use CRLF line endings over the imap protocol
+   when storing its payload to the draft box, violating RFC 3501.
+
+ * "git log --format='%w(x,y,z)%b'" and friends that rewrap message
+   has been optimized for utf-8 payload.
+
+ * Error messages generated on the receiving end did not come back to "git
+   push".
+
+ * "git status" in 1.7.0 lacked the optimization we used to have in 1.6.X series
+   to speed up scanning of large working tree.
+
+ * "gitweb" did not diagnose parsing errors properly while reading its configuration
+   file.
+
+And other minor fixes and documentation updates.