Remake bibextras according to usual typographical rules.
Merge remote-tracking branch 'upstream/dev'

Conflicts:
	tex/latex/biblatex/lbx/catalan.lbx

Merged catalan changes.
Check remake by aboruvka after answers of sebasvila:
* Add thinspace around hyphen in ranges and dateranges but not in dates.
* Modify \bibmascord: aboruvka missed '4t'
Translate urlfrom
Some corrections in translations.
Marked entries that need smartde amb smart del with a comment.
Merge pull request #86 from sebasvila/master

Review of catalan.lbx changes