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

gitportable/usr/share/vim/vim91/indent/changelog.vim

@@ -0,0 +1,14 @@
+" Vim indent file
+" Language:	generic Changelog file
+" Maintainer:	noone
+" Last Change:	2005 Mar 29
+
+" Only load this indent file when no other was loaded.
+if exists("b:did_indent")
+   finish
+endif
+let b:did_indent = 1
+
+setlocal ai
+
+let b:undo_indent = "setl ai<"