Merge pull request #80 from in3otd/master

case insensitive component search
remove Q3PaintDeviceMetric to QPaintDevice
clean schematic.h unnecessary include
remove unused comment, include
remove qt3 in markerdialog
move QPointArray to QPolygon
remove executable property in diagrams source
clean schematic*.cpp unnecessary include

schematic.cpp
schematic_file.cpp
schematic_element.cpp
remove Drag n drop in q3IconView
clean redundant include in main directory

messagedock.h messagedock.cpp

element.cpp
main.h
mnemo.h mnemo.cpp
module.cpp module.h

mouseaction.h mouseaction.cpp

node.h
octave_window.h

qucs.cpp qucs.h

syntax.h
viewpainter.h
wire.h
wirelabel.cpp wirelabel.h
Merge pull request #81 from yodalee/feature-remove-qt3-in-diagrams

Feature remove qt3 in diagrams
Merge pull request #82 from yodalee/feature-remove-qt3-in-schematic

Feature remove qt3 in schematic
Merge pull request #83 from yodalee/feature-clean-maindirectory-include

clean redundant include in main directory