Added message filtering (based on whether the message is deleted, whether it needs validation, etc.) when getting message headers

In the poll result viewer mode, SlyVote now allows the user to type a poll number to go directly to it.  Also, in the poll result viewer mode, added the ability for the sysop to delete the poll message currently being viewed.

Version 1.17 beta 24: Implemented an update for message newscans which should (hopefully) fix the bug where the correct last read/newscan message wasn't being used.  Now it should hopefully show the correct first unread message during a newscan.

Bug fix: When voting on a poll using the lightbar menu, it now saves the correct option chosen by the user.

When viewing vote poll results, it now updates the user's last read & scan pointers.  Also, it now determines the initial message index to use based on the user's last read pointer.

When creating a Frame object (for viewing & scrolling ANSI messages), it now removes the HIGH attribute from the default frame attributes.

current source in CVS without SDL (graphics modes) and without cryptlib (SSH).

in WinSock (wsock32.lib), but might add the IP Helper lib or other cfg
properties later.

Don't assume the first null message index is the last message in the sub.  Don't create an Array just to have something to set arbitrary properties on.  This may fix the problem observed on Vert by KenDB3 (messages after mid Nov. 2016 not being displayed).

Bug fix: When posting a poll, now it makes sure the user's sub-board is correct.  Also, now it correctly handles the user quitting out of a couple menus with the ESC key (making no choice).

Added the ability to vote on a topic from the result viewer interface.  Also, updated the documentation a bit.
SlyVote now has just enough functionality to be a useful voting both door, but I still want to add & update a few things.  I want to implement the "Answer all topics" functionality, add the ability in the result viewer to type a topic number and jump to it, add the ability for sysops to delete voting topics (poll messages) from SlyVote, and also improve some of the screen displays a bit.  I might also possibly add a help/informational screen.

fix cleartoeol() and clearline() to clear relative to current frame offset (instead of absolute position)

On second thought, Frame.clear() will probably just be changed and my previous commit is unnecessary.

In ViewVoteResults, call Frame.cleardata before dumping new content into the Frame.  This effectively resets Frame.data_width and Frame.data_height, which ScrollBar uses in its calculations.

Worked on displaying the vote results - Got the poll result colors showing correctly in the frame and enabled frame scrolling and navigation between the poll result messages.  There are still some things remaining, such as enabling voting on a poll from the "view results" view, going directly to a poll message by typing in its number, and voting on all polls.

Version 1.17 beta 22: Fixed a couple of bugs related to viewing messages with ANSI content and scrolling them.

Trying to use a Frame to display poll message text to ensure it's scrollable.  Having an issue with it displaying Synchronet color attributes though..

Added a check to make sure the user is allowed to vote (by checking the V restriction).  Also, started working on the beginnings of reading poll results.  It's still a work in progress.

Version 1.17 beta 21: Updated to check whether the user is allowed to vote before letting them vote on the message (by checking the V restriction).  Also, fixed a display update bug that happened if the user quit out of voting on a poll/message.

Updated DDLightbarMenu to preserve the current selection when an item hotkey is pressed.  Also, updated SlyVote to preserve the main menu option when returning back to the main menu from an action.

Updated to check whether a user has voted on a topic before allowing them to vote on it, and display an error if so.