Add mouseclick handling for menus in tiles:

L-click will page down, R-click is treated like Escape.

Change L-click on player from single turn search to (the more useful, I think) pickup, and add L-click to list of alternatives to call the pickup menu, so that clicking on the player icon twice will directly open the pickup menu.

This is getting complicated: there are so few combinations of mouseclicks possible, but because they do different things under different circumstances this really needs to be documented somehow.

Fix coloured hp/mp bars not updating during running. (During travel the map needs to be redrawn anyway, so also having to redraw the bars doesn't hurt any.)

Also fix list_rotten to be readable from init.txt (and default to true).

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@3316 c06c8d41-db1a-0410-9941-cceddc491573

Created by  j-p-e-g  on January 24, 2008
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