[AIRFLOW-2779] Add project version to license (#4177)

The Incubator PMC requested that we add version information to the
license declarations to cope with the possibility of projects changing
licenses on us in the future.

Where possible I have worked out the version we are actually using, but
where that hasn't been possible and the project is still on the same
license (they all were) I have taken the latest version as of right now

[ci-skip]

Author: ashb

LICENSE

@@ -217,9 +217,10 @@ The following components are provided under the Apache 2.0 License.
 See project link for details. The text of each license is also included
 at licenses/LICENSE-[project].txt.
 
-    (ALv2 License) hue (https://github.com/cloudera/hue/)
-    (ALv2 License) jqclock (https://github.com/JohnRDOrazio/jQuery-Clock-Plugin)
-    (ALv2 License) bootstrap3-typeahead (https://github.com/bassjobsen/Bootstrap-3-Typeahead)
+    (ALv2 License) hue v4.3.0 (https://github.com/cloudera/hue/)
+    (ALv2 License) jqclock v2.3.0 (https://github.com/JohnRDOrazio/jQuery-Clock-Plugin)
+    (ALv2 License) bootstrap3-typeahead v4.0.2 (https://github.com/bassjobsen/Bootstrap-3-Typeahead)
+    (ALv2 License) airflow.contrib.auth.backends.github_enterprise_auth
 
 ========================================================================
 MIT licenses
@@ -228,16 +229,16 @@ MIT licenses
 The following components are provided under the MIT License. See project link for details.
 The text of each license is also included at licenses/LICENSE-[project].txt.
 
-    (MIT License) jquery (https://jquery.org/license/)
-    (MIT License) dagre-d3 (https://github.com/cpettitt/dagre-d3)
-    (MIT License) bootstrap (https://github.com/twbs/bootstrap/)
-    (MIT License) d3-tip (https://github.com/Caged/d3-tip)
-    (MIT License) dataTables (https://datatables.net)
-    (MIT License) WebGL-2D (https://github.com/gameclosure/webgl-2d)
-    (MIT License) Underscorejs (http://underscorejs.org)
-    (MIT License) Bootstrap Toggle (http://www.bootstraptoggle.com)
-    (MIT License) normalize.css (http://necolas.github.io/normalize.css/)
-    (MIT License) ElasticMock (https://github.com/vrcmarcos/elasticmock)
+    (MIT License) jquery v2.1.4 (https://jquery.org/license/)
+    (MIT License) dagre-d3 v0.6.1 (https://github.com/cpettitt/dagre-d3)
+    (MIT License) bootstrap v3.2 (https://github.com/twbs/bootstrap/)
+    (MIT License) d3-tip v0.6.3 (https://github.com/Caged/d3-tip)
+    (MIT License) dataTables v1.10.10 (https://datatables.net)
+    (MIT License) WebGL-2D (git-commit 9a7ec26) (https://github.com/gameclosure/webgl-2d)
+    (MIT License) Underscorejs v1.5.0 (http://underscorejs.org)
+    (MIT License) Bootstrap Toggle v2.2.0 (http://www.bootstraptoggle.com)
+    (MIT License) normalize.css v3.0.2 (http://necolas.github.io/normalize.css/)
+    (MIT License) ElasticMock v1.3.2 (https://github.com/vrcmarcos/elasticmock)
 
 ========================================================================
 BSD 2-Clause licenses
@@ -246,16 +247,16 @@ The following components are provided under the BSD 2-Clause license.
 See file headers and project links for details.
 The text of each license is also included at licenses/LICENSE-[project].txt.
 
-    (BSD 2 License) flask-kerberos (https://github.com/mkomitee/flask-kerberos)
+    (BSD 2 License) flask-kerberos v1.0.4 (https://github.com/mkomitee/flask-kerberos)
 
 ========================================================================
 BSD 3-Clause licenses
 ========================================================================
 The following components are provided under the BSD 3-Clause license. See project links for details.
 The text of each license is also included at licenses/LICENSE-[project].txt.
 
-    (BSD 3 License) Ace (https://github.com/ajaxorg/ace)
-    (BSD 3 License) d3js (https://d3js.org)
-    (BSD 3 License) parallel-coordinates (http://syntagmatic.github.com/parallel-coordinates/)
-    (BSD 3 License) scikit-learn (https://github.com/scikit-learn/scikit-learn)
+    (BSD 3 License) Ace v1.1.8 (https://github.com/ajaxorg/ace)
+    (BSD 3 License) d3js v3.5.17 (https://d3js.org)
+    (BSD 3 License) parallel-coordinates v0.7.0 (http://syntagmatic.github.com/parallel-coordinates/)
+    (BSD 3 License) scikit-learn v0.19.1 (https://github.com/scikit-learn/scikit-learn)