Failing tests in DataHandler.jl

[heileman]

The read/write invariance tests are now failing (currently commented out in test file). I believe this may have occurred with the read_csv() function was updated.

[heileman]

Failing test:
curric1 = Curriculum("Underwater Basket Weaving", [A,B,C,D,E,F], institution="ACME State University", CIP="445786")
# write curriculum to secondary storage
@test write_csv(curric1, "./UBW-curric.csv") == true  # this test passes
# read from same location
curric2 = read_csv("./UBW-curric.csv") 
@test string(curric1) == string(curric2)  # read/write invariance test, this test now fails