Added changelog

Author: bgaeddert

CHANGELOG.rst

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+Changelog
+=========
+
+1.2.3 - April 23, 2020
+----------------------
+
+Fixed
+~~~~~
+
+* Updated dependencies called out in npm audit. (bug fix) #78
+ * Fixing 50 vulnerabilities (13 low, 12 moderate, 22 high, 3 critical)
+ * Packages Updated:
+  * browserify: 6.3.2 => 16.5.1
+  * del: 0.1.3 => 5.1.0
+  * glob: 4.0.6 => 7.1.6
+  * gulp: 3.8.10 => 4.0.2
+  * gulp-jshint: 1.9.0 => 2.1.0
+  * gulp-mocha: 1.1.1 => 7.0.2
+  * gulp-mocha-phantomjs: 0.8.1 => 0.12.2
+  * mocha: 2.0.1 => 7.1.1
+  * vinyl-buffer: 1.0.0 => 1.0.1
+  * vinyl-source-stream: 1.0.0 => 2.0.0