Increase length of shortName by Vo from 16 characters to 32 characters.

- change in createVo method (entry)
- change in updateVo method (entry)
- add test for testing if its allright
Merge pull request #267 from stavamichal/vosShortNameFrom16To32CharsLong

Increase length of shortName by Vo from 16 characters to 32 characters.