Add backup_restore_profile.sh
Update change_ota_channel_pref.sh to include 1.4.0
Merge pull request #113 from nhirata/update_OTA_script

Update change_ota_channel_pref.sh to include 1.4.0
Merge pull request #112 from askeing/backup_restore_user_data

Add backup_restore_profile.sh
Fix typo in README.md
Merge pull request #115 from nbp/readme-typo

Fix typo in README.md