Merge pull request #28 from uggedal/uggedal-theme

Minimal prompt theme.

themes/uggedal/fish_prompt.fish

+function fish_prompt
+  if test -n "$SSH_CONNECTION"
+    printf '%s ' $HOSTNAME
+  end
+
+  printf '%s ' (prompt_pwd)
+end

themes/uggedal/fish_right_prompt.fish

+function fish_right_prompt
+  set -l last_status $status
+
+  if test $last_status -ne 0
+    set_color red
+    printf '%d' $last_status
+    set_color normal
+  end
+end