software/seleniumserver: configure fontconfig

This was disabled to "keep compatibility with current font selection
problems", but I don't think we need to care about compatibility for
this. This was anyway causing a problem that system fontconfig will be
used if it's available, so it's better to define things explictly to
prevent falling back to system configuration.

software/seleniumserver/buildout.hash.cfg

@@ -19,4 +19,4 @@ md5sum = 10e19df182c692b71ea552da183a0bcf
 
 [template-selenium]
 filename = instance-selenium.cfg.in
-md5sum = 8c48c7bef34dd54ab3bd94c91f2bf041
+md5sum = 39e64f252b7b55987a7e9192773994c1

software/seleniumserver/instance-selenium.cfg.in

@@ -25,9 +25,8 @@ fonts =
     ${liberation-fonts:location}
     ${ocrb-fonts:location}
     $${directory:fonts}
-# XXX we don't include conf.d for now, to keep compatibility with current font selection problems.
 includes =
-#    ${fontconfig:location}/etc/fonts/conf.d
+    ${fontconfig:location}/etc/fonts/conf.d
 
 [xvfb-instance]
 recipe = slapos.cookbook:wrapper