markup above or beside a fermata

[Jinsong Zhao]

Hi there,

In the following snippet, I want to typeset a markup above or beside a 
fermata. However, I am not lucky enough.

There's a very tiny space between the second fermata and the note d'''2. 
It seems that the space can't be removed, and this also causes the tiny 
vertical space in the forth note.

The outside-staff-priority can't move the "rit." to the above of the 
third note.

\version "2.19.15"
{
  d'''2.\fermata d'''2.\fermata^\markup{}
  \once \override TextScript #'outside-staff-priority = #5000
  d'''2.\fermata^"rit." d'''2.\fermata^\markup{\null \translate #'(2 . 
0 ) "rit."}
}

Any suggestions? Thanks in advance.

Best,
Jinsong