Fix incorrect romanian plural translations

Q       | A
--------|--------
Bug fix? | yes
New feature? | no
BC breaks? | no
Deprecations? | no
Tests pass? | yes
Fixed tickets |
License | MIT
Doc PR |

In romanian plural translations was only one or two forms, but is required three, because it throws errors when transchoice has number that is translated to the third form.

Before fix

![staticshot_04-08-2014_11-27-51](https://cloud.githubusercontent.com/assets/1475489/3794833/ff9047c4-1bb2-11e4-8965-61d53803eb7c.png)

After fix

![staticshot_04-08-2014_11-33-18](https://cloud.githubusercontent.com/assets/1475489/3794844/1f8c48ca-1bb3-11e4-8654-69e0f3107e6d.png)

Info about romanian plural forms

![staticshot_04-08-2014_11-39-41](https://cloud.githubusercontent.com/assets/1475489/3794849/3cb03e70-1bb3-11e4-9151-7075ec9c8f4d.png)