SlyEdit version 1.47: Updated to read the tagline filename from line 7 of the...

SlyEdit version 1.47: Updated to read the tagline filename from line 7 of the MSGINF dropfile.  If that line in MSGINF is available (starting with Synchronet 3.16 beta builds on July 5, 2015), then the user's chosen tagline will be written to the tagline file, and Synchronet will read that and append the tagline after the user's signature.  Otherwise, the tagline will appear before the user's signature in the message.