first stab at porting core GUI to tkpath with SVG goodness. new scrollbars that will hopefully put an end to the old painful scrollbar nonsense. pdtk_tip clean-up and improvements. tons of other small bug fixes. a number of issues/wishlists still exist before the next big release:
*improve g_array lower/raise to use new functionality (BUG! doesn't match any items)
*scalar is drawn behind at first
*Scope~ window name "h16ffd10" already exists in parent (likely resize hook)
	*Change appearance of the resize hook
*better getrect for scalars inside plot?
*reenable bgerror and t_tkcmd catch
*Clean-up and merge cyclone documentation

*fixed axes get inverted when going beyond the allowed range
*fixed min size based on nlets when text shown

*stretchable objects (like 0.45) with undo/redo capability, diagonal resize cursor, and minimum gop size.

*fixed cord redrawing when objects got resized due to cut/paste of object's text
*ctrlleft,ctrlright, and shift variants all now properly navigate messages during editing, including single character atoms
*fixed regression where clicking on iemgui labels of gop-embedded iemgui objects also counts as a click on the object itself (e.g. toggle being toggled on/off)
*fixed regression when dynamically changing iemgui properties within gop as to when to hide and when to show it
*proper redrawing and reordering logic for arrange and dynamic changes to iemgui objects inside gop
*committed http://sourceforge.net/p/pure-data/pure-data/ci/97851b3c44b2b3839069928d90ca6185de4455c5/

fixed regression where empty image box appeared on gop-ed parent in incorrect locations and/or it was not supposed to show up at all. Some refinements to the path detection/removal of debug output.

revamped path to support ~/, root paths, relative paths, as well as special tags like @pd_extra that expands to the location of the extra folder (other tags may be added later if necessary).

added experimental optimization for binding abstractions as per following post on the pd-list: http://lists.puredata.info/pipermail/pd-list/2013-08/103688.html

streamlined @pd_extra parsing for easier integration with other file open calls including externals. Added it to open_via_path

added pdtk_canvas_force_getscroll function to ensure critical getscroll events are executed immediately

optimizations to the scrolling algorithm including erroneous jumps in the scrollbar when pasting/cutting/duplicating things.

streamlined selection logic and added ability for pd to recognize system-wide @pd_extra variable within the path

fixed double loadbang regression due to implementation of internal pre-loadbang mechanism for the preset engine.

fixed segfault when closing array window/subpatch due to lack of checking of valid resize/move hook pointers

improved nlet highlighting (integrated it into glist), fixed bug with multiselect with mixed objects (accelerated and legacy)

provided a more robust way of suspending dsp before closing the patch... needs testing to see if this fixes lingering sporadic crashes when quitting without closing the patch.

implemented universal catch{} for all commands sent from c to tcl to minimize (eradicate?) stderr output.

*fixed bug where objects were selected via a mouse click based on their left-to-right rather than top-to-bottom position
*fixed bug where undoing moving of a GOP object would incorrectly draw the object on top of other objects
*fixed bug where nlets would show on top of other objects when highlighted

fixed wrong color fill for selected gop object when opening gop-ed subpatch, incorrect selection of all scalars inside gop-ed patch when it is being edited as a toplevel window, and a bug where repeatedly opening already open gop-ed patch does not re-focus its toplevel window

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

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

made gop resize and move hooks visible only when nothing else is selected on that canvas to minimize possible overlap of selection hooks

fixed bug where gop element with hidden text still did not allow resizing below the width of the text

fixed confirming saving changes on an abstraction hidden inside another patch (currently invisible) whose prompting failed...

finished undo implementation, added consistency to how canvas properties window is handled in undo situations, removed debug output.

removed rendundant memory hack and found potentially real and permanent fix to the double-entry bug (see g_canvas.c inside canvas_free() function). Many thanks to Krzysztof Czaja for his incredibly helpful hint!

added redundant memory remapping when creating new embedded canvases to avoid double-entry bug which has resurfaced since the introduction of the infinite undo.