Log Message:
p5-Search-Xapian: update to 1.2.25.0.

1.2.25.0  Tue Sep 26 02:06:18 UTC 2017
	[Changes contributed by Olly Betts]
	- Wrap WritableDatabase::commit(), which is the preferred name for
	  WritableDatabase::flush().
	- Fix long SEE ALSO lines by putting a newline after each comma in the
	  SEE ALSO lists, fixing warnings from man such as:
	  <standard input>:109: warning [p 1, 8.0i]: can't break line
	- Backport some improvements to the POD documentation from the
	  SWIG-based bindings in xapian-bindings 1.4.x.
	- Avoid perl -W in tests as that seems to break recent versions of
	  Test::More.
	- Suppress dummy warning using undef value when building against
	  xapian-core 1.4.x.