PHP 7 incompatibility

It seems that wpMandrill is not fully compatible with PHP 7. Based on a PHP compatibility test I noticed the following warnings and errors:

FILE: /wp-content/plugins/wpmandrill/lib/mandrill.class.php
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FOUND 2 ERRORS AND 2 WARNINGS AFFECTING 4 LINES
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431 | WARNING | INI directive ‘safe_mode’ is deprecated since PHP 5.3 and removed since PHP 5.4
511 | WARNING | INI directive ‘magic_quotes_runtime’ is deprecated since PHP 5.3 and removed since PHP 5.4
545 | ERROR | Function set_magic_quotes_runtime() is deprecated since PHP 5.3 and removed since PHP 7.0
551 | ERROR | Function set_magic_quotes_runtime() is deprecated since PHP 5.3 and removed since PHP 7.0
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Are there any suggestions about this (apart from using another plugin or the forked version of wpMandrill by Miller Media)?

Thanks in advance.