*ported fixes for crasher when sending a "dsp" message to tilde objects.  Backported from Pd Vanilla commits [8019b5] and [5769c5]

*fixed bug where patches with relative paths and multiple patches did not open properly within the existing instance of pd-l2ork

*fixed intermittent problem in k12 mode where edit/play button got stuck because ctrl key got gobbled up by a popup dialog or new window

* suppress printing the full list of classes when using the "print" method with [pdinfo] (just show number of loaded classes and an informative message)

fixed draw_getpathrect so that poorly formed path instructions don't end up trying to read nonexistent elements from sc_vec

* disabled warnings about unused parameters (which are pointless) & enabled warnings about other unused local variables (which allow to find dead code)

set arg to [objectinfo] to canvas level instead of object index. (Especially since index is likely to change with each message.)

*fixed bug where patch titlebars were not properly re-titled after using save-as function (possibly other file I/O operations as well)

*refined toggling of edit mode when using ctrl+e shortcut where pressing it without releasing ctrl technically leaves user in the perform mode until ctrl is released.

*experimental commit that makes sample rate work properly in -nogui mode by leveraging requested audio_rate in case current sample rate is uninitialized

*fixed regression in the editval function that prevented proper updating of the GUI edit/perform button and other related visual cues