Update dot files with recent improvements

modified:   .bash_Msys
    * Retabbed to eliminate tabs.
    * Added the function m() to encapsulate running make and producing a
      make.log for vim's quick-fix.
    * Added -p to the vim functions that may benefit from tab pages (==
      not the diff functions).

modified:   .bash_env
    * $HOME/info -> $HOME/share/info, to stay with conventions.

modified:   .gitconfig
    * turn some color.* attributes off, as color looks awful in the
      base.exe terminal.

modified:   .gvimrc
    * set lines=40 when not doing diffs.