create lab directory in parent

abstract MazeParams to be able to set them easily
doit.sh support new class creation
updated README

Signed-off-by: philippe lhardy <philippe@pavilionartlogiciel>

README

@@ -1,3 +1,4 @@
+
 This is a personal project to generate a 2D maze using in depth path generation.
 
 this can generate a stl file, overall goal was to print it with a 3D printer, i didn't test it yet ( even if i actualy have a 3D printer ).
@@ -10,10 +11,18 @@ there is a console gui menu base with ./doit.sh
 
 run it by :
 
-cd java
-make display
-( it will compile and run it ).
-it ask fro three integers :
+________Linux distribution_____________________
+
+mkdir github
+cd github
+git clone https://github.com/artlog/labystl.git
+cd labystl.git
+./doit.sh
+ant
+run
+_______________________________________________
+
+it ask for three integers :
 
 X Y maxpath
 
@@ -23,9 +32,11 @@ ex :
 
 will generate a 10x10 labyrinth with trying to fork a different path every 7 steps.
 
-then it saves labyrinth under java/lab directory under two format :
+then it saves labyrinth under lab or java/lab (depending if run or test respectively) directory under two format :
 - one reusable by this tool that contains all solutions. ( .lab )
-- one in stl that can be viewed with blender or sliced with slic3r to feed a 3D printer ( not yet tested ).
+- one in stl that can :
+  - be viewed with blender
+  - or sliced with slic3r to feed a 3D printer ( not yet tested ).
 
 buttons left,right,up,left can be used to walk the labyrinth. resolve will display solution.
 and there is a control for sizing cells.
@@ -36,4 +47,3 @@ Entry of labyrinth is upper left corner, exit is lower right ( this is different
 
 BUGS are numerous, and every bug was cleverly designed to drive you mad.
 DOCUMENTATION is self contained in code an in my brain.
-