Variable in message properties

[krazar]

Hello,

This merge request fixes the same issue as #72 .
I just added the possibility to have variable in headers as well.

The example has been updated.
The tests has been updated as well to take this scenario into account.

However, I am totally new to Ruby, so someone should review it before merge.

[ghost]

Hi @krazar, we have found your signature in our records, but it seems like you have signed with a different e-mail than the one used in yout Git commit. Can you please add both of these e-mails into your Github profile (they can be hidden), so we can match your e-mails to your Github profile?

[ghost]

Hi @krazar, we have found your signature in our records, but it seems like you have signed with a different e-mail than the one used in yout Git commit. Can you please add both of these e-mails into your Github profile (they can be hidden), so we can match your e-mails to your Github profile?