#843 - Add a log to the contact form

add following lines to debug.log:

2020-03-20 10:58:09 Info: MAIL From: (anonymous user) qsdfqsdf@ljlkj.com -->  To: [ 134 ] Asqatasun.org
2020-03-20 10:58:55 Info: MAIL From: [ 287 ] dev-asso -->  To: [ 134 ] Asqatasun.org

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Fixed #843 (closed)