add github release mechanism

changelog_info_retriever

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+function parse() {
+  version=$1
+
+  read -r
+  while [ -z "`echo $REPLY | grep -e "^#\+ $version"`" ]
+  do
+      read -r
+  done
+
+  read -r
+  while [ -z "`echo $REPLY | grep -e "^#\+"`" ]
+  do
+      echo "$REPLY"
+      read -r
+  done
+}
+
+version=$1
+file=$2
+
+if [ -n "$file" ]; then
+  parse $version < "$file"
+else
+  parse $version
+fi