Download of E-MTAB expression data fails

[patflick]

The download of E-MTAB-513 expression data fails silently and downloads a html error page instead.
Then when trying to import the file, the init_data.py script will fail with:

Traceback (most recent call last):
  File "init_data.py", line 118, in <module>
    emtab_expr.init_data()
  File "/Users/gatto/Documents/Academia/Projects/PPi-HPA/scripts/tsppi/src/pappi/expr/expr.py", line 32, in init_data
    self.import_raw_file()
  File "/Users/gatto/Documents/Academia/Projects/PPi-HPA/scripts/tsppi/src/pappi/expr/emtab.py", line 29, in import_raw_file
    sql_conn=self.sql_conn, skip_rows=3)
  File "/Users/gatto/Documents/Academia/Projects/PPi-HPA/scripts/tsppi/src/pappi/sql.py", line 137, in import_csv
    row = csv_reader.__next__()
StopIteration