Added changelog section to README

Author: Nicolai Bjerre Pedersen

README.md

@@ -15,6 +15,7 @@
 * [Installation](#installation)
 * [Configuration](#configuration)
 * [Example](#example)
+* [Changelog & Releases](#changelog)
 * [Docker status](#docker)
 
 ## <a name='about'></a>About
@@ -85,6 +86,19 @@ _Add-on configuration_:
 
 **Note**: _This is just an example, don't copy and past it! Create your own!_
 
+## < name='changelog'>Changelog & Releases
+
+This repository keeps a [change log](CHANGELOG.md). The format of the log
+is based on [Keep a Changelog][keepchangelog].
+
+Releases are based on [Semantic Versioning][semver], and use the format
+of ``MAJOR.MINOR.PATCH``. In a nutshell, the version will be incremented
+based on the following:
+
+- ``MAJOR``: Incompatible or major changes.
+- ``MINOR``: Backwards-compatible new features and enhancements.
+- ``PATCH``: Backwards-compatible bugfixes and package updates.
+
 
 ## <a name='docker'></a>Docker status
 
@@ -140,4 +154,7 @@ _Add-on configuration_:
 [travis-build]: https://travis-ci.org/mr-bjerre/hassio-remote-backup
 [travis-build-shield]: https://travis-ci.org/mr-bjerre/hassio-remote-backup.svg?branch=master
 
+[keepchangelog]: http://keepachangelog.com/en/1.0.0/
+[semver]: http://semver.org/spec/v2.0.0.html
+
 [hassio-addons]: https://github.com/mr-bjerre/hassio-addons

remote-backup/run.sh

@@ -36,7 +36,7 @@ function add-ssh-key {
 function copy-backup-to-remote {
 
     cd /backup/
-    if [ "$ZIP_PASSWORD" == "" ]; then
+    if [[ ! $ZIP_PASSWORD  ]]; then
       echo "Copying ${slug}.tar to ${REMOTE_DIRECTORY} on ${SSH_HOST} using SCP"
       scp -F "${HOME}/.ssh/config" "${slug}.tar" remote:"${REMOTE_DIRECTORY}"
     else