Added correct requirements file

Author: nishitkshah

Diff for: requirements.txt

@@ -1,12 +1,6 @@
-asn1crypto==0.24.0
-cryptography==2.1.4
-enum34==1.1.6
-idna==2.6
-ipaddress==1.0.17
-keyring==10.6.0
-keyrings.alt==3.0
-pycrypto==2.6.1
-pygobject==3.26.1
-pyxdg==0.25
-SecretStorage==2.3.1
-six==1.11.0
+Django==2.0.6
+django-rest-framework-mongoengine==3.3.1
+djangorestframework==3.8.2
+mongoengine==0.9.0
+pymongo==2.9.5
+pytz==2018.4