fixed noselect bug when line is selected and one clicks on a blank canvas which should also deselect selected line. also made pd_extrapath struct global as part of s_stuff.h so that ggee/image can use dynamic descriptors for retrieving of files (.e.g @pd_extra is translated to the pd's system-wide location of the extra/ folder)

fixed refocusing windows when closing sub-patch (or abstraction) where an invised parent would become visible instead of focusing on the next visible window.

hopefully finally array of improvements to the tooltip engine fixing offset bug when the window has scrollbars

further improved tooltip detection and reintroduced canvas tips that appear either in the bottom-left or top-left corners

code clean-up, more font resize/zoom fixes (hopefully done with it), and a minor bug fix for select all inside font window

settled on zoom (ctrl+mousewheel) which does the same thing as font resize simply because doing real zoom is extremely cumbersome with tcl/tk (esp. when one considers resizing images and also re-adjusting all coordinates inside c code to match newly zoomed state)

Added undo font size, overhauled font resizing logic (x/y scaling is now bound to font resizing), added zoom option (ctrl+mousewheel), minor code clean-up, dynamic font resize improvements to the tooltip system and improved tooltip arrow appearance.

improved vslider: added pass-through for externally entered values (vslider_float) without having them corrupted (only if it is linear entry, log entries have to get recalculated for obvious reasons). also added automatic repositioning of knob when resizing both via clickhook and properties window.

added ability for hslider to pass through uncorrupted values (if entered externally via inlet) and to resize its knob properly when resizing via clickhook

removed selection from the undo queue as it precludes selecting older stuff and pasting it into new stuff (undo -> select old would purge the queue ahead of that undo, so -> redo -> paste would be impossible)

fixed automatic resizing of the gop when changing font sizes, complete overhaul of the tooltip engine. TODO: add proper nlet tags to iemgui objects...

added support for tooltips (based on the http://sourceforge.net/tracker/?func=detail&aid=2838176&group_id=55736&atid=478072)

by tag in which case gop will fall back to the old way of redrawing