started A* algoritm
initial attempt at pathfinding algorithm
added management of blocking blocks
fixes in the pathfinding system
initiated a test framework
fixed partial action state issues, close #1817
Merge branch '6.0.x' into 6.1.x
Really advanced phased facades
Merge branch 'Prototik-advanced-phased-facades' into 6.1.x
Support for transparent facades
Merge branch '6.0.x' into 6.1.x
Merge branch '6.1.x' into 6.1.x-pathfinding
Merge branch 'transparent-facades' of https://github.com/Prototik/BuildCraft into Prototik-transparent-facades
Merge branch 'Prototik-transparent-facades' into 6.1.x
fixed initial gate activation status
progress in path finding algorithm
Merge branch '6.0.x' into 6.1.x
Update EntityRobotPicker.java

Prevents a crash if the pipe a robot is docked onto is broken.
Merge pull request #1835 from viliml/patch-1

Update EntityRobotPicker.java
started to work on tester item