Link fixes

Fixes reader button visible in detail view
Fix formats to convert (added htmlz)
Fix logger in updater
Added request "v3" of github api on update
Fix quotes parameter on external calls
E-Mail logger working more stable (also on python3)
Routing fixes
Change import in ub

cps/ub.py

@@ -23,7 +23,6 @@ from sqlalchemy import exc
 from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy.orm import *
 from flask_login import AnonymousUserMixin
-from flask_dance.consumer.backend.sqla import OAuthConsumerMixin
 import sys
 import os
 import logging
@@ -34,8 +33,11 @@ from binascii import hexlify
 import cli
 
 try:
+    from flask_dance.consumer.backend.sqla import OAuthConsumerMixin
     import ldap
+    oauth_support = True
 except ImportError:
+    oauth_support = False
     pass
 
 engine = create_engine('sqlite:///{0}'.format(cli.settingspath), echo=False)
@@ -207,11 +209,11 @@ class User(UserBase, Base):
     default_language = Column(String(3), default="all")
     mature_content = Column(Boolean, default=True)
 
-
-class OAuth(OAuthConsumerMixin, Base):
-    provider_user_id = Column(String(256))
-    user_id = Column(Integer, ForeignKey(User.id))
-    user = relationship(User)
+if oauth_support:
+    class OAuth(OAuthConsumerMixin, Base):
+        provider_user_id = Column(String(256))
+        user_id = Column(Integer, ForeignKey(User.id))
+        user = relationship(User)
 
 
 # Class for anonymous user is derived from User base and completly overrides methods and properties for the
@@ -834,7 +836,7 @@ def delete_download(book_id):
     session.commit()
 
 # Generate user Guest (translated text), as anoymous user, no rights
-def create_anonymous_user(session):
+def create_anonymous_user():
     user = User()
     user.nickname = "Guest"
     user.email = 'no@email'