Add release.sh script

Fixes #44 > Workflow: Release notes are now generated automatically

.buildscripts/release-notes.sh

@@ -37,4 +37,4 @@ FORMAT_ENTRY_INFO="- \3 (\2)"
 git log $(git describe --abbrev=0)..HEAD | \
     grep -E "$MATCH_ENTRY_LINE" | \
     sed -e "s/$CAPTURE_ENTRY_INFO/$FORMAT_ENTRY_INFO/g" | \
-    sort
+    sort

.buildscripts/release.sh

@@ -0,0 +1,16 @@
+echo Input version number using semantic versioning, e.g. '0.1.2'
+read tag
+
+echo Generating release notes...
+echo Creating tag...
+./.buildscripts/release-notes.sh | git tag -a $tag --file -
+
+echo "Push release tag? [y/n]"
+read push
+if [[ $push == y* ]]; then
+    echo "Pushing tag..."
+    git push origin $tag
+else
+    echo "Skipped pushing tag."
+fi
+echo "All done!"