Fixed dot trimming bug

This bug could cause body content to be terminated early if the
body contained a line which consisted of only ".\r\n" as the duplicated
'escaping' dot was being removed.
Merge pull request #1026 from greenbender/dev

Fixed dot trimming bug
fixed typo in nntpproxy¸py
added check for apache server before checking for mod_rewrite in step1.php
fixed bug in postprocess_threaded.py when max pp size set to 0
changed how tpg and releases threaded script is determined
Merge pull request #1027 from nZEDb/dev

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