qt5: add initial qt5 to mxe-octave, based on mxe.cc * src/qt5.mk: new file * src/qtbase-1-fixes.patch: new file * src/qtbase.mk: new file * src/qtimageformats-1.patch: new file * src/qtimageformats.mk: new file * src/qtsvg.mk: new file * src/qttools-1.patch: new file * added src/qttools.mk: new file * changed Makefile.in: added ENABLE_QT5 option * configure.ac: added enable-qt5 option * index.html: added new files to packages * installer-files/octave-firsttime.vbs: added setup of qt5 bin, plugin path * installer-files/octave.vbs: added setup of qt5 bin, plugin path * installer-files/octave.bat: added setup of qt5 bin path * src/default-octave.mk: added settig fot qt5 usage * src/qscintilla.mk: added qt5 path

diff -ur ocs.old/src/Makefile ocs/src/Makefile
--- ocs.old/src/Makefile	2015-07-07 20:23:51.000000000 -0400
+++ ocs/src/Makefile	2015-07-07 20:24:25.000000000 -0400
@@ -1,9 +1,10 @@
 OCTFILES:=Mshichmanhodgesmosfet.oct
+MKOCTFILE ?= mkoctfile
 
 all: $(OCTFILES)
 
 %.oct:  %.cc
-	mkoctfile $<
+	$(MKOCTFILE) $<
 
 clean:
 	-rm -f *.o core octave-core *.oct *~