Preferred dot notation.

line 2: ['fontFamily'] is better written in dot notation.
Mission semicolons.

Missing semicolons.
Merge pull request #285 from shmulim/patch-1

Preferred dot notation.
Merge pull request #286 from shmulim/patch-2

Mission semicolons.
Added a semicolon
Added
Merge pull request #287 from shmulim/patch-3

Added a semicolon
Merge pull request #288 from shmulim/patch-4

Added a semicolon
close #291
Adding my solution to problem 12

Simple down/right/up/left behavior, with a twist to make the problem more simple for the droid by placing blocks wherever we can.
Typo fix (conditionally takes 1 n, 2 l)
My solution for problem 13: fill the maze with blocks
Merge pull request #294 from mike-perdide/patch-3

My solution for problem 13: fill the maze with blocks
Merge pull request #293 from mike-perdide/patch-2

Adding my solution to problem 12
Update README.md
check if dynamic objects' behavior is defined - close #239
fix #298
fix #300
fix chapter display bug
build