settings: enable spell checking by default in vimrc

git-svn-id: https://subversion.assembla.com/svn/magicant/settings@316 9a5e03f8-c55e-0410-a490-9d27d325e308
settings: support newer GNOME terminal in rc files

git-svn-id: https://subversion.assembla.com/svn/magicant/settings@317 9a5e03f8-c55e-0410-a490-9d27d325e308