Adding support for MATLAB

Author: gvwilson

assets/css/lesson.scss

@@ -40,6 +40,7 @@ $color-testimonial: #fc8dc1 !default;
 
 .bash   { @include cdSetup($color-source); }
 .make   { @include cdSetup($color-source); }
+.matlab { @include cdSetup($color-source); }
 .python { @include cdSetup($color-source); }
 .r      { @include cdSetup($color-source); }
 .sql    { @include cdSetup($color-source); }

bin/lesson_check.py

@@ -67,6 +67,7 @@
     'source',
     'bash',
     'make',
+    'matlab',
     'python',
     'r',
     'sql'