Bug#1050381: unison-2.52: Please drop after 2.53 import

[Bastian Germann]

Source: unison-2.52
Severity: wishlist
Control: block 967559 by -1
#880541 requests unison-2.53. When that is packaged (maybe as 
reintroduction of the old unison source package?) please drop 
unison-2.52, which is the most popular lablgtk2 package.