officially dual-licensing
Update 11_robot.md
Merge pull request #238 from sheaulle/patch-1

Update 11_robot.md
Update 10_ambush.md
Update 10_ambush.md
Merge pull request #241 from pavel-kolesnikov/patch-1

10_ambush.md: random rules!
Update 12_robotNav.md
Update 17_pointers.md
Update 12_robotNav.md
Update 17_pointers.md
Update 12_robotNav.md
Update 12_robotNav.md
Merge pull request #243 from pavel-kolesnikov/patch-1

Update 17_pointers.md: find nearest TP next to exit, re-route others to it.
Merge pull request #242 from pavel-kolesnikov/patch-2

12_robotNav.md simple connected mazes solver
fix #244
Merge branch 'master' of github.com:AlexNisnevich/untrusted
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