- renamed function: 'text-utils:left-padding-suffix' to 'text-utils:left-padding-prefix';
- rendered the choice index for poll's choicehs;
- shown if a poll allows multiple choiches.
- prevented an info or error message on the command line to overlap
with prompt when asking for user input and, in particular, when
asking for message attachment.
- prevented crash when trying to expand a null string;
- clear send-message-window before deleteing an attach from the list;
- added an info when a status is ready to be sent;
- using a stack to sort drawing order of windows.