- Updated Examples (in Options)

- Use of `*` to block `www` domain fixed
- Can block `www` only (meaning no-`www` will remain unblocked)
- `www` blocked by default (for convenience)
- Adding `/*` automatically, if possible (for convenience)
- Escaping regex-like characters `.` and `+`

Can block pages that contain a word. Example:

*watch*   ⇒   Blocks youtube.com/watch?v=123456

See Examples and Special characters (https://github.com/penge/block-site).

Adding support for wildcards, therefore in "Sites to block" (in Options) you can use:

• * to match any zero or more characters
• ? to match any one character

See new Examples section (README at https://github.com/penge/block-site).

- Fixed blocking so it blocks URL only if rule matches URL from start (https://github.com/penge/block-site/issues/65)

- Set Firefox addon ID
- Fixed initialization of context menu