Translation of UI (german and english)

Bugfix for feeds
    - removed categories related and up
    - load new books now working
    - category random now working
login page is free of non accessible elements
boolean custom column is vivible in UI
books with only with certain languages can be shown
book shelfs can be deleted from UI
Anonymous user view is more resticted
Added browse of series in sidebar
Dependencys in vendor folder are updated to newer versions (licencs files are now present)
Bugfix editing Authors names
Made upload on windows working

vendor/jinja2/nodes.py

@@ -12,16 +12,16 @@
     :copyright: (c) 2010 by the Jinja Team.
     :license: BSD, see LICENSE for more details.
 """
+import types
 import operator
 
 from collections import deque
 from jinja2.utils import Markup
-from jinja2._compat import next, izip, with_metaclass, text_type, \
-     method_type, function_type
+from jinja2._compat import izip, with_metaclass, text_type
 
 
 #: the types we support for context functions
-_context_function_types = (function_type, method_type)
+_context_function_types = (types.FunctionType, types.MethodType)
 
 
 _binop_to_func = {
@@ -232,6 +232,9 @@ class Node(with_metaclass(NodeType, object)):
     def __ne__(self, other):
         return not self.__eq__(other)
 
+    # Restore Python 2 hashing behavior on Python 3
+    __hash__ = object.__hash__
+
     def __repr__(self):
         return '%s(%s)' % (
             self.__class__.__name__,
@@ -344,6 +347,11 @@ class Assign(Stmt):
     fields = ('target', 'node')
 
 
+class AssignBlock(Stmt):
+    """Assigns a block to a target."""
+    fields = ('target', 'body')
+
+
 class Expr(Node):
     """Baseclass for all expressions."""
     abstract = True
@@ -743,7 +751,7 @@ class Add(BinExpr):
 
 
 class Sub(BinExpr):
-    """Substract the right from the left node."""
+    """Subtract the right from the left node."""
     operator = '-'