Update dependencies

gavel/controllers/admin.py

@@ -90,7 +90,7 @@ def allowed_file(filename):
 
 
 def parse_upload_form():
-    f = request.files['file']
+    f = request.files.get('file')
     data = []
     if f and allowed_file(f.filename):
         extension = str(f.filename.rsplit('.', 1)[1].lower())

requirements.txt

@@ -1,26 +1,34 @@
+amqp==2.3.2
 appdirs==1.4.3
-celery==4.0.2
+billiard==3.5.0.3
+celery==4.1.1
+certifi==2018.4.16
+chardet==3.0.4
 click==6.7
-Flask==0.12
+Flask==1.0.2
 Flask-Assets==0.12
-Flask-SQLAlchemy==2.2
-gunicorn==19.7.1
+Flask-SQLAlchemy==2.3.2
+gunicorn==19.8.1
 humanize==0.5.1
+idna==2.6
 itsdangerous==0.24
-Jinja2==2.9.5
-Markdown==2.6.8
+Jinja2==2.10
+kombu==4.2.1
+Markdown==2.6.11
 MarkupSafe==1.0
-numpy==1.12.1
-packaging==16.8
-psycopg2==2.7.1
+numpy==1.14.3
+psycopg2==2.7.4
 pyparsing==2.2.0
 pyScss==1.3.5
+pytz==2018.4
 PyYAML==3.12
-redis==2.10.5
-requests==2.13.0
-scipy==0.19.0
-six==1.10.0
-SQLAlchemy==1.1.6
+redis==2.10.6
+requests==2.18.4
+scipy==1.1.0
+six==1.11.0
+SQLAlchemy==1.2.8
+urllib3==1.22
+vine==1.1.4
 webassets==0.12.1
-Werkzeug==0.12.1
-xlrd==1.0.0
+Werkzeug==0.14.1
+xlrd==1.1.0