Added ~/.xinitrc to the repository.

In addition, a host-specific file that will be executed
by .xinitrc was added in ~/.xinitrc.d/.

scripts/makesymlinks.bash

@@ -10,7 +10,7 @@ backup_dir="$HOME/.dotfiles.bak/"
 
 # the following folders inside $config_dir will be inspected and the
 # contents symlinked:
-symlink_folders='bash git i3 vim zsh conky terminator'
+symlink_folders='bash git i3 vim zsh conky terminator x'
 
 MAPPING_SEPARATOR='::'