Some improvements you might be interested in#1

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GSI wants to merge 3 commits intoIQAndreas:masterfrom

Commits on Dec 18, 2012

replaced custom function get_post_field with standard PHP function filter_input
Gernot
committed

Commits on Dec 19, 2012

corrected an error in regards to checking the A record of the url and improved output of get_warnings_for()
Gernot
committed

Commits on May 6, 2013

added dynamic message-id to email headers
Gernot
committed