gnu: exim: Add alternate URL.

* gnu/packages/mail.scm (exim)[source]: Add alternate URL.

gnu: eudev: Update home-page URL.

* gnu/packages/linux.scm (eudev)[home-page]: Add up-to-date URL.

guix package: Fix typo in comment.

* guix/scripts/package.scm: Fix typo.

gnu: Add Bristol.

* gnu/packages/music.scm (bristol): New variable.

gnu: lilypond: Update to 2.19.33.

* gnu/packages/music.scm (lilypond): Update to 2.19.33.

gnu: lilypond: Build info pages with images.

* gnu/packages/music.scm (lilypond)[arguments]: Set "conf" and "out" to
  "www"; rename phase "hardcode-path-to-gs" to "fix-path-references";
  fix reference to "/bin/sh"; add phase "install-info".

gnu: Add Yoshimi.

* gnu/packages/music.scm (yoshimi): New variable.

gnu: Add XML::Compile::WSDL11.

* gnu/packages/xml.scm (perl-xml-compile-wsdl11): New variable.

gnu: Add XML::Compile::SOAP.

* gnu/packages/xml.scm (perl-xml-compile-soap): New variable.

gnu: Add XML::Compile::Cache.

* gnu/packages/xml.scm (perl-xml-compile-cache): New variable.

gnu: Add XML::LibXML::Simple.

* gnu/packages/xml.scm (perl-xml-libxml-simple): New variable.

gnu: Add File::Slurp::Tiny.

* gnu/packages/perl.scm (perl-file-slurp-tiny): New variable.

gnu: Add HTML::Template.

* gnu/packages/web.scm (perl-html-template): New variable.

gnu: Add XML::Compile.

* gnu/packages/xml.scm (perl-xml-compile): New variable.

gnu: Add XML::Compile::Tester.

* gnu/packages/xml.scm (perl-xml-compile-tester): New variable.

gnu: Add Log::Report.

* gnu/packages/perl.scm (perl-log-report): New variable.

gnu: Add Log::Report::Optional.

* gnu/packages/perl.scm (perl-log-report-optional): New variable.

gnu: Add String::Print.

* gnu/packages/perl.scm (perl-string-print): New variable.

gnu: Add Unicode::LineBreak.

* gnu/packages/perl.scm (perl-unicode-linebreak): New variable.

gnu: Add MIME::Charset.

* gnu/packages/perl.scm (perl-mime-charset): New variable.