update rakefile

Rakefile

@@ -6,13 +6,8 @@ task :test => FileList['test/*_test.rb'] do |t|
 end
 
 desc 'Generate mime tables'
-task :tables => 'lib/mimemagic_tables.rb'
-file 'lib/mimemagic_tables.rb' => FileList['script/freedesktop.org.xml'] do |f|
+task :tables => 'lib/mimemagic/tables.rb'
+file 'lib/mimemagic/tables.rb' => FileList['script/freedesktop.org.xml'] do |f|
   sh "script/generate-mime.rb #{f.prerequisites.join(' ')} > #{f.name}"
 end
 
-desc 'Generate documentation'
-task :doc => 'doc/api/index.html'
-file 'doc/api/index.html' => FileList['**/*.rb'] do |f|
-  sh "rdoc -o doc/api --title 'Git-Wiki Documentation' --inline-source --format=html #{f.prerequisites.join(' ')}"
-end