Add Deferred license #3739 (#3741)

Author: razvanlitianu

BlockzillaPackage/Sources/Licenses/license-list.plist

@@ -4,6 +4,32 @@
 <dict>
 	<key>libraries</key>
 	<array>
+		<dict>
+			<key>licenseBody</key>
+			<string>MIT License
+
+Copyright (c) 2014-2018 John Gallagher, Zachary Waldowski, and contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the &quot;Software&quot;), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.</string>
+			<key>name</key>
+			<string>Deferred</string>
+		</dict>
 		<dict>
 			<key>licenseBody</key>
 			<string>Copyright (c) 2015 Ce Zheng