Added polish in readme to supported UI languages

Handling of missing tags in fb import
naming of path is more imitating calibre (replacement of special characters, "pinyining" of author names if unidecode is available )
Sorting of authors (similar to calibre for jr./sr./I..IV endings)
bugfix pathseparator on windows and linux during upload
bugfix os.rename for authordir
publishing date on detailview is formated according to slected locale
filename on downloading from web ui is now correct displayed
added ids to html for testing

cps/helper.py

@@ -22,6 +22,11 @@ from email.generator import Generator
 from flask_babel import gettext as _
 import subprocess
 import shutil
+try:
+    import unidecode
+    use_unidecode=True
+except:
+    use_unidecode=False
 
 def update_download(book_id, user_id):
     check = ub.session.query(ub.Downloads).filter(ub.Downloads.user_id == user_id).filter(ub.Downloads.book_id ==
@@ -203,7 +208,7 @@ def get_attachment(file_path):
         return attachment
     except IOError:
         traceback.print_exc()
-        message = (_('The requested file could not be read. Maybe wrong permissions?'))  # ToDo: What is this?
+        app.logger.error = (u'The requested file could not be read. Maybe wrong permissions?')
         return None
 
 
@@ -212,47 +217,54 @@ def get_valid_filename(value, replace_whitespace=True):
     Returns the given string converted to a string that can be used for a clean
     filename. Limits num characters to 128 max.
     """
-    value = value[:128]
-    # re_slugify = re.compile('[^\w\s-]', re.UNICODE)
-    value = unicodedata.normalize('NFKD', value)
-    re_slugify = re.compile('[^\w\s-]', re.UNICODE)
-    value = unicode(re_slugify.sub('', value).strip())
+    if value[-1:] ==u'.':
+        value = value[:-1]+u'_'
+    if use_unidecode:
+        value=(unidecode.unidecode(value)).strip()
+    else:
+        value=value.replace('§','SS')
+        value=value.replace('ß','ss')
+        value = unicodedata.normalize('NFKD', value)
+        re_slugify = re.compile('[\W\s-]', re.UNICODE)
+        value = unicode(re_slugify.sub('', value).strip())
     if replace_whitespace:
-        value = re.sub('[\s]+', '_', value, flags=re.U)
-    value = value.replace(u"\u00DF", "ss")
+        #*+:\"/<>? werden durch _ ersetzt
+        value = re.sub('[\*\+:\\\"/<>\?]+', '_', value, flags=re.U)
+
+    value = value[:128]
     return value
 
+def get_sorted_author(value):
+    regexes = ["^(JR|SR)\.?$","^I{1,3}\.?$","^IV\.?$"]
+    combined = "(" + ")|(".join(regexes) + ")"
+    value = value.split(" ")
+    if re.match(combined,value[-1].upper()):
+        value2 = value[-2] + ", " + " ".join(value[:-2]) + " " + value[-1]
+    else:
+        value2 = value[-1] + ", " + " ".join(value[:-1])
+    return value2
 
-def get_normalized_author(value):
-    """
-    Normalizes sorted author name
-    """
-    value = unicodedata.normalize('NFKD', value)
-    value = re.sub('[^\w,\s]', '', value, flags=re.U)
-    value = " ".join(value.split(", ")[::-1])
-    return value
-    
 
 def update_dir_stucture(book_id, calibrepath):
     db.session.connection().connection.connection.create_function("title_sort", 1, db.title_sort)
     book = db.session.query(db.Books).filter(db.Books.id == book_id).first()
-    path = os.path.join(calibrepath, book.path)
+    path = os.path.join(calibrepath, book.path)#.replace('/',os.path.sep)).replace('\\',os.path.sep)
     
-    authordir = book.path.split(os.sep)[0]
-    new_authordir = get_valid_filename(book.authors[0].name, False)
-    titledir = book.path.split(os.sep)[1]
-    new_titledir = get_valid_filename(book.title, False) + " (" + str(book_id) + ")"
+    authordir = book.path.split('/')[0]
+    new_authordir = get_valid_filename(book.authors[0].name)
+    titledir = book.path.split('/')[1]
+    new_titledir = get_valid_filename(book.title) + " (" + str(book_id) + ")"
     
     if titledir != new_titledir:
         new_title_path = os.path.join(os.path.dirname(path), new_titledir)
         os.rename(path, new_title_path)
         path = new_title_path
-        book.path = book.path.split(os.sep)[0] + os.sep + new_titledir
+        book.path = book.path.split('/')[0] + '/' + new_titledir
     
     if authordir != new_authordir:
         new_author_path = os.path.join(os.path.join(calibrepath, new_authordir), os.path.basename(path))
-        os.renames(path, new_author_path)
-        book.path = new_authordir + os.sep + book.path.split(os.sep)[1]
+        os.rename(path, new_author_path)
+        book.path = new_authordir + '/' + book.path.split('/')[1]
     db.session.commit()