Add same optimizations applied to general.php catalog side to admin#264

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acidvertigo wants to merge 6 commits intoosCommerce:masterfrom

acidvertigo:patch-26

Commits on Nov 7, 2014

Commits on Nov 10, 2014

Remove tep_parse_input_field_data function
acidvertigo
committed

Commits on Dec 19, 2014

Add conditional check for $ip_addresses[] = $_SERVER['REMOTE_ADDR'];
acidvertigo
committed

Commits on Dec 23, 2014

Update tep_not_null function
acidvertigo
committed