Update requirements.txt

requirements.txt

@@ -1,22 +1,22 @@
-bleach==1.5.0
-click==6.7
-cycler==0.10.0
-enum34==1.1.6
-Flask==0.12.2
-html5lib==0.9999999
-itsdangerous==0.24
-Jinja2==2.10
-Markdown==2.6.11
-MarkupSafe==1.0
-matplotlib==2.1.2
-numpy==1.14.0
-Pillow==5.0.0
-protobuf==3.5.1
-pyparsing==2.2.0
-python-dateutil==2.6.1
-pytz==2017.3
-scipy==1.0.0
-six==1.11.0
-tensorflow==1.4.1
-tensorflow-tensorboard==0.4.0
-Werkzeug==0.14.1
+bleach>=1.5.0
+click>=6.7
+cycler>=0.10.0
+enum34>=1.1.6
+Flask>=0.12.2
+html5lib>=0.9999999
+itsdangerous>=0.24
+Jinja2>=2.10
+Markdown>=2.6.11
+MarkupSafe>=1.0
+matplotlib>=2.1.2
+numpy>=1.14.0
+Pillow>=5.0.0
+protobuf>=3.5.1
+pyparsing>=2.2.0
+python-dateutil>=2.6.1
+pytz>=2017.3
+scipy>=1.0.0
+six>=1.11.0
+tensorflow>=1.4.1
+tensorflow-tensorboard>=0.4.0
+Werkzeug>=0.14.1