Some PIC stuff and save circuit properties to file.
Some fun with bjt.
BugFix: wrong Text size in svg.
Improbe graphical interaction through components childs + some cleaning.
New Component: CD4511
New Component: BCD to Seven Segment.
BugFix: Potenciometer doing crazy things.
BugFix: Hd44780 weird behaivor afther rotated.
More on gpsim integration