updated requirementes

requirements.txt

-Django==1.11.5
+- Django==1.11.5
 gunicorn==19.6.0
 Pillow==3.4.2
 psycopg2==2.6.2
@@ -15,3 +15,7 @@ pyexcel==0.5.3
 pycurl==7.43.0
 django-stronghold==0.2.9
 timeout-decorator==0.4.0
+Unidecode==1.0.22
+Faker==0.9.2
+pandas==0.23.4
+numpy==1.15.2
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