Created and added debug action icons. * bp_next.png: Added icon. * bp_prev.png: Added icon. * bp_rm_all.png: Added icon. * bp_toggle.png: Added icon. * db_cont.png: Added icon. * db_step.png: Added icon. * db_step_in.png: Added icon. * db_step_out.png: Added icon. * db_stop.png: Added icon. * file-editor-interface.h: Added method for accessing the editor's toolbar. * file-editor: Implemented new interface methods. Assigned icons. * main-window.cc: Now adding debug actions to toolbar. * resource.qrc: Added new icons to resource file.

gnulib = [git]git://git.sv.gnu.org/gnulib
gui/qterminal = [git]https://code.google.com/p/qterminal/