upgrade django version

requirements.txt

@@ -2,8 +2,9 @@ appdirs==1.4.0
 bandit==0.17.0
 coverage==4.0.3
 coveralls==1.1
+csvkit==0.9.1
 dj-database-url==0.3.0
-Django==1.8.4
+Django==1.8.14
 django-cors-headers==1.1.0
 django-countries==3.4.1
 django-extensions==1.6.1
@@ -13,25 +14,30 @@ django-localflavor==1.1
 django-nose==1.4.2
 django-rest-swagger==0.3.5
 django-secure==1.0.1
-djangorestframework==3.3.2
+djangorestframework==3.3.3
 djangorestframework-csv==1.4.1
 docopt==0.6.2
 gitdb==0.6.4
 GitPython==1.0.1
 graphviz==0.4.8
+jdcal==1.2
 nose==1.3.7
+openpyxl==2.2.0b1
 pbr==1.8.1
 pep8==1.6.2
 psycopg2==2.6.1
 py==1.4.30
 pytest==2.8.3
 pytest-cov==2.2.0
 pytest-django==2.9.1
+python-dateutil==2.2
 PyYAML==3.11
 requests==2.8.1
 sh==1.11
 six==1.10.0
 smmap==0.9.0
+SQLAlchemy==1.0.13
 stevedore==1.10.0
 waitress==0.8.9
 whitenoise==1.0.6
+xlrd==0.9.4