settings: make tig keybind more like less (g, G, ^g)


git-svn-id: https://subversion.assembla.com/svn/magicant/settings@337 9a5e03f8-c55e-0410-a490-9d27d325e308
settings: add many maps in vimrc

git-svn-id: https://subversion.assembla.com/svn/magicant/settings@338 9a5e03f8-c55e-0410-a490-9d27d325e308