* src/debug.c: Add "ALL" as a debug flag, aliased to everything.
* src/pty.c: Print debug info after redirecting stdio.
* src/trie.c: When debugging, count only decision nodes.
* src/vte.c: Fix se, for real this time.  Add a mostly-ignored protected
	attribute.  Handle am, bw, ul flags properly.  Make cd clear the current
	line, too.  Make ce fill the current default attributes through the end
	of the line.  Handle cS.  Fix cv to work when we have a scrollback
	buffer.  Handle ll, mp.  Line wrap on nd.  Reset tab stops on hard reset
	only.  Handle soft-reset and full-reset.  Handle uc.  Initialize
	scrollback line count properly.  Tweak drawing of alternate 'a' to get
	rid of artifacts.  Reset insert mode, cursor visibility, and scrolling
	regions when resetting.