Merge pull request #1885 from petk/patch-clean

Add progit-kf8.epub to clean step

Author: ben

Rakefile

@@ -120,7 +120,7 @@ namespace :book do
     begin
         puts 'Removing generated files'
 
-        FileList['book/contributors.txt', 'progit.html', 'progit.epub', 'progit.fb2.zip', 'progit.mobi', 'progit.pdf'].each do |file|
+        FileList['book/contributors.txt', 'progit.html', 'progit-kf8.epub', 'progit.epub', 'progit.fb2.zip', 'progit.mobi', 'progit.pdf'].each do |file|
             rm file
 
             # Rescue if file not found