debian/copyright: update and move to copyright format 1.0
debian/watch: use github instead of hackage
Imported Upstream version 0.18
Merge tag 'upstream/0.18'

Upstream version 0.18
Add changelog entry for 0.18-1
Refresh the typo patch
build-depend on libghc-regex-compat

This was introduced by upstream with commit 85fdac2.
Update manpage

 • Adjust upstream copyright years
 • Rephrase clause about own work, the manpage is not generated anymore
control: update short description

Drop the initial capital letter and the part about UTF-8 and Xft. The latter is
standard nowadays anyway, there's nothing so fancy about it deserving to be in
the short description.
Release xmobar 0.18-1
debian/copyright: s/BSD/BSD-3-Clause/
changelog: document changes