add requirement.txt

cps/web.py

@@ -18,9 +18,9 @@ from sqlalchemy.exc import IntegrityError
 from sqlalchemy import __version__ as sqlalchemyVersion
 from math import ceil
 from flask_login import LoginManager, login_user, logout_user, login_required, current_user
-from flask_login import __version__ as flask_loginVersion
+from flask_login.__about__ import __version__ as flask_loginVersion
 from flask_principal import Principal, Identity, AnonymousIdentity, identity_changed
-from flask_login import __version__ as flask_principalVersion
+from flask_principal import __version__ as flask_principalVersion
 from flask_babel import Babel
 from flask_babel import gettext as _
 import requests

requirements.txt

@@ -1,2 +1,24 @@
 future
 sqlalchemy
+
+PyPDF2
+babel
+blinker
+click
+flask
+flask_babel
+flask_login
+flask_principal
+iso-639
+itsdangerous
+jinja2
+markupsafe
+pytz
+requests
+singledispatch
+six
+sqlalchemy
+tornado
+validate
+wand
+werkzeug