Added powercode support

[laf]

Simply detects this as a new vendor.

Deals with issue #746

[laf]

Confirmation on logo

Date: Wed, 08 Apr 2015 16:14:22 -0500
From: Simon Westlake xxx@powercode.com
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0
MIME-Version: 1.0
To: neil@lathwood.co.uk
Subject: Fwd: Re: Permission to use Logo
References: 1850241467.41994212.1428527052573.JavaMail.zimbra@wavedirect.org
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Hi Neil,

See below, you're welcome to use the logo to identify Powercode
products! I've attached a transparent PNG if it helps.