Minor maintenance amendments

• more items in .gitignore;
• update on LITL in README.adoc;
• refinements in comments for rename-efi-entry.bash.

Revert partition data matching to initial version by Craig Francis

• revert partition data matching to initial version by Craig Francis as a follow-up for issue #2, just for the regular expression to be closer to actual data
• cleanup script message formatting

Implement wildcard EFI label matching

• implement wildcard EFI label matching to address issue #4
• various improvements and updates in comments and README.adoc

Add EFI data output upon running without arguments

• add EFI data output upon running without arguments
• add extra comments on device name pattern enhancement by Jeric de Leon

'README.adoc': incorporate a comment by 'FroggMaster'

'README.adoc': incorporate a comment by 'FroggMaster'

Fix UUID matching, add licenses

• rename-efi-entry.bash: fix pattern for UUID matching, add more comments
• add licenses to make GitHub more happy :)
• README.adoc: licensing, minor wording improvements

Minor enhancements

• rename-efi-entry.bash: add check for running as root
• README.adoc: restructure background, add limitations

Initial implementation

Initial implementation.