Merge pull request #52 from skx/51-telegram

51 telegram

Merge pull request #50 from skx/49-ssl-chain

Report on the CommonName of expiring SSL certificates

Resync dependencies and prepare for new release

Allow multiple HTTP-status-codes to be permitted as OK.

This closes #46.

Merge pull request #45 from skx/44-redis-len

44 redis len

Minor update to test a new release workflow

Document actions

Build ARM binaries.

For my personal use.

Test for errors creating a temp-file

Ensure we close our IMAP handles.

If a username&password are specified for use with the remote IMAP
server we attempt a login. However we never logout, which can
mean that we'll see some failures of the form:

        "Too many logins from one source .."

(Via dovecot).

To avoid this we ensure that we do two things correctly:

* Logout
* Close the connection.