refactor: Re-implement help messages with Markdown utility functions

Improves readability and I18N friendliness.

Signed-off-by: 林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>

fix: Avoid unmount attempt if the mount is never happened

Signed-off-by: 林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>

refactor: Drop unnecessary error messages in mount_target_filesystem

Signed-off-by: 林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>

fix spelling errors

Signed-off-by: April Kahny <aprilkahny@gmail.com>

docs: Add link of version compare to the release notes

This shall improve the transparency of the changes.

Signed-off-by: 林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>

Merge pull request #83 from philenotfound/master

Increase EFI partition size to 1M

dev: Implement Vagrantfile for ease testing on different Linux distri…

…butions

Signed-off-by: 林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>

refactor: Use specific functions for outputting messages

Currently, we use generic printf\* functions to output application messages, however, it creates some problems:

1. Ununified output formats (#58, #56, #54, #52).
1. Unnecessary manually adding color codes to give color to messages, which is often forgotten (#56).
1. Unnecessary manually adding message class and function tags, which are often forgotten, case ununified, or misplaced. (#54, #58).
1. Unnecessary manually setting redirection for warning and error messages, which is often forgotten (#51).

By implementing specific functions for each INFO/WARNING/ERROR message we can fix these issues altogether.

Fixes #51, #52, #54, #56, #58, #60.

Incidentally fixes #55 in the process.

Signed-off-by: 林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>

Merge branch 'impl/4gib-install-wim-on-fat'

Fix WoeUSB triggering EXIT trap cleanup when exit-immediately functio…

…ns are triggered

Fixes #19.

Signed-off-by: 林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>