Update Linux Magazine

Fixes #1453406 [Updated recipe for Linux Magazine](https://bugs.launchpad.net/calibre/+bug/1453406)

recipes/linux_magazine.recipe

@@ -1,38 +1,42 @@
 #!/usr/bin/env  python2
 
 __license__   = 'GPL v3'
-__copyright__ = '2008, Darko Miletic <darko.miletic at gmail.com>'
+__copyright__ = '2008-2015  , Darko Miletic <darko.miletic at gmail.com>'
 '''
 linux-magazine.com
 '''
 
-from calibre.ebooks.BeautifulSoup import BeautifulSoup
 from calibre.web.feeds.news import BasicNewsRecipe
 
 class LinuxMagazine(BasicNewsRecipe):
-    title                 = u'Linux Magazine'
+    title                 = 'Linux Magazine'
     __author__            = 'Darko Miletic'
-    description           = 'Linux news'  
-    language = 'en'
-  
-    oldest_article        = 7
+    description           = 'Linux news'
+    publisher             = 'Linux Magazine'
+    category              = 'news, linux, open source, software'
+    language              = 'en'
+    encoding              = 'utf-8'
+    oldest_article        = 35
     max_articles_per_feed = 100
     no_stylesheets        = True
     use_embedded_content  = False
 
-    remove_tags_after = dict(name='div', attrs={'class':'end_intro'})
+    conversion_options = {
+                          'comment'   : description
+                        , 'tags'      : category
+                        , 'publisher' : publisher
+                        , 'language'  : language
+                        }
+
+
+    keep_only_tags=dict(name='div', attrs={'class':lambda x:'full' in (x or '').split()})
+
+    remove_tags_after = dict(name='div', attrs={'id':'disqus_thread'})
     remove_tags = [
-                     dict(name='div' , attrs={'class':'end_intro' })
-                    ,dict(name='table'  , attrs={'width':'100%'})
+                      dict(name='div' , attrs={'class':['attribute-relatedcontent',
+                                                        'social_bookmarks',
+                                                        'paginate'] })
+                     ,dict(name='div' , attrs={'id':'articlebox'})
                   ]
 
     feeds          = [(u'Linux Magazine Full Feed', u'http://www.linux-magazine.com/rss/feed/lmi_full')]
-        
-    def print_version(self, url):
-        raw = self.browser.open(url).read()
-        soup = BeautifulSoup(raw.decode('utf8', 'replace'))
-        print_link = soup.find('a', {'title':'Print this page'})
-        if print_link is None:
-            return url
-        return 'http://www.linux-magazine.com'+print_link['href']
-