Final pre-release nits

[adamantivm]

This adds a few final changes prior to the initial release:

• Fixes a few copyright headers
• Sets the version to 1.0.1 (initial version), taken from package.xml
• Updates the shutdown notification title

@jubeira could you please review? Also let me know if you have any other observations prior to release

[adamantivm]

Good ideas, @jubeira , thank you. Addressed.