Bump pyyaml from 3.12 to 5.4

requirements.txt

@@ -5,58 +5,175 @@
 #    pip-compile
 #
 awesome-slugify==1.6.5
+    # via -r requirements.in
 babbage==0.3.5
-bitarray==0.8.1           # via pybloom-live
+    # via -r requirements.in
+bitarray==0.8.1
+    # via pybloom-live
 blinker==1.4
+    # via -r requirements.in
 cchardet==1.1.3
-certifi==2017.7.27.1      # via requests
-chardet==3.0.4            # via normality, requests
-click==6.7                # via datapackage, flask, python-dotenv, tableschema, tabulator
-contextlib2==0.5.5        # via raven
+    # via
+    #   -r requirements.in
+    #   datapackage
+    #   tabulator
+certifi==2017.7.27.1
+    # via requests
+chardet==3.0.4
+    # via
+    #   normality
+    #   requests
+click==6.7
+    # via
+    #   datapackage
+    #   flask
+    #   python-dotenv
+    #   tableschema
+    #   tabulator
+contextlib2==0.5.5
+    # via raven
 datadog==0.16.0
+    # via -r requirements.in
 datapackage==1.2.3
-decorator==4.1.2          # via datadog
+    # via -r requirements.in
+decorator==4.1.2
+    # via datadog
 elasticsearch==5.5.3
-et-xmlfile==1.0.1         # via openpyxl
+    # via
+    #   -r requirements.in
+    #   os-package-registry
+et-xmlfile==1.0.1
+    # via openpyxl
 flask-cors==3.0.3
+    # via -r requirements.in
 flask-jsonpify==1.5.0
+    # via -r requirements.in
 flask==0.12.2
-grako==3.10.1             # via babbage
+    # via
+    #   -r requirements.in
+    #   babbage
+    #   flask-cors
+    #   flask-jsonpify
+functools32==3.2.3.post2
+    # via jsonschema
+grako==3.10.1
+    # via babbage
 gunicorn==19.7.1
-idna==2.6                 # via requests
-ijson==2.3                # via tabulator
-isodate==0.5.4            # via tableschema
-itsdangerous==0.24        # via flask
-jdcal==1.3                # via openpyxl
-jinja2==2.9.6             # via flask
-jsonlines==1.2.0          # via tabulator
-jsonpointer==1.12         # via datapackage
-jsonschema==2.6.0         # via babbage, datapackage, tableschema
-linear-tsv==1.0.0         # via tabulator
-markupsafe==1.0           # via jinja2
-normality==0.4.4          # via babbage
-openpyxl==2.4.8           # via tabulator
+    # via -r requirements.in
+idna==2.6
+    # via requests
+ijson==2.3
+    # via tabulator
+isodate==0.5.4
+    # via tableschema
+itsdangerous==0.24
+    # via flask
+jdcal==1.3
+    # via openpyxl
+jinja2==2.9.6
+    # via flask
+jsonlines==1.2.0
+    # via tabulator
+jsonpointer==1.12
+    # via datapackage
+jsonschema==2.6.0
+    # via
+    #   babbage
+    #   datapackage
+    #   tableschema
+linear-tsv==1.0.0
+    # via tabulator
+markupsafe==1.0
+    # via jinja2
+normality==0.4.4
+    # via babbage
+openpyxl==2.4.8
+    # via tabulator
 os-api-cache==0.0.7
+    # via
+    #   -r requirements.in
+    #   os-package-registry
 os-package-registry==0.0.21
+    # via -r requirements.in
 psycopg2==2.7.3.1
-pybloom-live==2.3.1       # via tableschema-sql
-python-dateutil==2.6.1    # via tableschema
+    # via
+    #   -r requirements.in
+    #   babbage
+pybloom-live==2.3.1
+    # via tableschema-sql
+python-dateutil==2.6.1
+    # via tableschema
 python-dotenv==0.7.1
+    # via -r requirements.in
 python-memcached==1.58
-pyyaml==3.12              # via babbage
+    # via -r requirements.in
+pyyaml==5.4
+    # via babbage
 raven==6.0.0
+    # via -r requirements.in
 redis==2.10.6
+    # via
+    #   -r requirements.in
+    #   os-api-cache
 regex==2017.9.23
-requests==2.18.4          # via datadog, datapackage, tableschema, tabulator
-rfc3986==1.1.0            # via tableschema
-simplejson==3.11.1        # via datadog
+    # via
+    #   -r requirements.in
+    #   awesome-slugify
+requests==2.18.4
+    # via
+    #   datadog
+    #   datapackage
+    #   tableschema
+    #   tabulator
+rfc3986==1.1.0
+    # via tableschema
+simplejson==3.11.1
+    # via datadog
 six==1.11.0
+    # via
+    #   -r requirements.in
+    #   babbage
+    #   datapackage
+    #   flask-cors
+    #   jsonlines
+    #   linear-tsv
+    #   normality
+    #   python-dateutil
+    #   python-memcached
+    #   tableschema
+    #   tableschema-sql
+    #   tabulator
 sqlalchemy==1.1.14
+    # via
+    #   -r requirements.in
+    #   babbage
+    #   tableschema-sql
+    #   tabulator
 tableschema-sql==0.10.0
+    # via -r requirements.in
 tableschema==1.0.12
+    # via
+    #   -r requirements.in
+    #   datapackage
+    #   tableschema-sql
 tabulator==1.14.0
-unicodecsv==0.14.1        # via datapackage, tableschema, tabulator
-unidecode==0.4.21         # via awesome-slugify
-urllib3==1.22             # via elasticsearch, requests
-werkzeug==0.12.2          # via flask
-xlrd==1.1.0               # via tabulator
+    # via
+    #   -r requirements.in
+    #   datapackage
+    #   tableschema
+    #   tableschema-sql
+unicodecsv==0.14.1
+    # via
+    #   datapackage
+    #   tableschema
+    #   tabulator
+unidecode==0.4.21
+    # via awesome-slugify
+urllib3==1.22
+    # via
+    #   elasticsearch
+    #   requests
+werkzeug==0.12.2
+    # via flask
+xlrd==1.1.0
+    # via tabulator