Fix csv course data bundling

[drewvolz]

Should let us close StoDevX/course-data#5

[drewvolz]

Build error:

"TypeError: sequence item 0: expected str instance, dict found" in course-data-tools/lib/csvify.py, line 15, in csvify

course-data-tools/lib/csvify.py

Lines 14 to 15 in 23265d6

	if type(item[key]) is list:
	item[key] = ';'.join(item[key])

# update bundled information for public consumption
python3 ../bundle.py --out-dir ../course-data --format json --format xml --format csv
concurrent.futures.process._RemoteTraceback: 
"""
TypeError: sequence item 0: expected str instance, dict found

[hawkrives]

Yes, there is a bug in the build process, which is why the CSV output was disabled.

[drewvolz]

Ah, you disabled that here.

[drewvolz]

@hawkrives do you want to dig into this?

[drewvolz]

CSV output is now fixed. Converted each element to a string first to fix the export.