Add a customizable variable to suppress file modification warnings

[cage2]

The package keeps a persistent hash of an annotated file to check if it was modified; if there is a mismatch between the hash in the database and the one calculated from the actual file a warning is printed.

A customizable variable could be added to suppress the printing of the warning messages.

Bye!
C.

[cage2]

Hi @gopar!

I just filed a PR (#87) that should add this feature, did you mind to check that branch so i can check if everything is fine, i mean the code to suppress the warning works as intended?

Thank you in advance!
C.