/import_csv fails if there are more values in rows than headers amount

[vmonakhov]

Steps to reproduce:

• In /import_csv choose the attached csv file список_лекарственных_хакасский_растений.csv

• Perform all the next steps in the dialog window

Expected result: The input file should be imported as a new Lingvodoc dictionary

Actual result:

Convertion failed, invalid CSV file 'список лекарственных хакасский растений.csv'

[vmonakhov]

Fixed. Now rows values are iterated in tuples with headers.