Add checkbox to limit CSV import to affect streets only
Ignore asset updates on other road types except streets when csv import is limited to streets
Verify that asset is updated on street when import is limited to streets
Add helper function for creating assets
Define default values for ImportResult fields
Take road type limit into use in import API
Improve check box label
Use 'intersect' for clarity
Use named parameters for clarity
Close input stream once CSV import is completed
Implement asset update as single transaction
Merge pull request #266 from finnishtransportagency/limit_csv_import_to_streets

Limit csv import to streets