Add some ICs, improve some, and Bugfixes

[hellow554]

CHANGELOG:

• edit the risingEdge check to XNOR (everywhere, where nessessarry)
• renamed TimeControl to SimpleTimeControl
• edited XOR and XNOR gate, so that they take 3 inputs and evaluate them!
• added new IC's:
  • MC1263 ( RainSensor )
  • MC1264 ( ThunderSensor )
  • MC1205 ( SetBlockAbove )
  • MC1206 ( SetBlockBelow )
  • MC1420 ( DivideByN )
  • MC2020 ( Random3Bit )
  • MC3231 ( TimeControl )
  • MC3232 ( WeatherControl )
  • MC4000 ( FullAdder )
  • MC4010 ( HalfAdder )
  • MC4100 ( FullSubtractor )
  • MC4110 ( HalfSubtractor )
  • MC4200 ( Dispatcher )
  • MC0263 ( RainSensorST )
  • MC0264 ( ThunderSensorST )

Still there are some problems with the family3ISO and 3I3O, because the inputs are sometimes not checked right (in my enviroment)
(I dont know how to upload files here, so i uploaded them on my webspace... sorry :) )
http://cookiesoft.de/craftbook/circuits/

[wizjany]

you don't upload files, you fork the repo and puah to git

http://help.github.com