issue/3305 Support for alternative course folder name

[oliverfoster]

part of adaptlearning/adapt_framework#3305

Added

• Support for course directory name to be received from grunt through the build.min.js file

Testing

1. To change the folder from course to alternative and test out the code

git clone https:/adaptlearning/adapt_framework 3305-course
cd 3305-course
git checkout issue/3305
mv src/course src/alternative
adapt devinstall && npm install
cd src/core
git checkout issue/3305
cd ../../
grunt dev --coursedir=alternative

2. You will need to find and replace all of the images in the json files from course/ to alternative/

[cahirodoherty-learningpool]

👀

[swashbuck]

This is working fine. Images are loading from the correct locations. No web browser console or CLI errors.