Common import command

proposed solution for #136 
are you sure you fixed the logic in the command to handle this properly?

```
vagrant@orocrm:/vagrant$ app/console oro:import:csv --processor=orocrm_contact.add_or_replace --validation-processor=orocrm_contact.add_or_replace joiz_user.csv
+---------------+-------+
| Results       | Count |
+---------------+-------+
| errors        | 0     |
| process       | 100   |
| read          | 100   |
| add           | 100   |
| replace       | 0     |
| update        | 0     |
| delete        | 0     |
| error_entries | 0     |
+---------------+-------+
Do you want to proceed [yes]? yes
File was successful imported.
```

yet using using 1.4.0-rc1 I am not seeing any Contacts in the UI