changelog, add file.

app/CHANGELOG.md

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+# Changelog
+
+## 1.1.2
+
+**More Fixes**
+
+- Correctly apply background color 333333 to icons.
+- Ensure activity sits above the navigation buttons on newer version of Android (if they exist).
+
+## 1.1.0
+
+Fixed Icon
+
+## 1.1.0
+