Workaround usage of deprecated glib symbols in 3rd party libraries

Removed unneeded header style filename #defines

Removed outdated classes. Pruned header to not introduce extraneous includes.

Get rid of gtkmm top-level header usage - not required by API

Cleanup GSEAL issues and deprecated GtkTooltips

Completely remove NRRect, NRRectL, in-svg-plane.h

Wholesale cruft removal part 4; fix crash when rendering guides

Rename param_writeSVGValue() --> param_getSVGValue() since the method doesn't actually write to SVG but only returns a ready-to-write string

Warning and whitespace cleanup

* (when debug macro is defined) call ShapeEditor function to on-canvas edit point lpe parameters. This function still needs to be implemented. * put forward declarations in lpe parameters to decrease recompile times

Warning and whitespace cleanup

fix initialization of lpe params

RegisteredWidget has been renamed to RegisteredWdg. This is a deprecated class, all that use it should be recoded and RegisteredWdg should be deleted as soon as possible. The *new* RegisteredWidget is a template class and should be subclassed (eventually) from Gtk::Widget, for example RegisteredWidget<Scalar> will be subclassed from Scalar, which is subclassed from Labelled, => Gtk::HBox => Gtk::Widget. This way, a RegisteredWidget<T> can be directly used as Gtk::Widget, and gtk::manage works, etc! This all should solve the problem of having multiple widgets for the same parameters.

prepare LPE parameter widgets to be owned by multiple dialogs, as it should be. For each parameter function that has not been re-implemented, a warning is issued. Sorry for the huge number of warnings showing when working with LPE. It is important to fix this asap.

trivial: live_effects/**: svn propset svn:eol-style native *.h *.cpp.

LPE: add RandomParam type.