update format2icon.prop

## Trac Ticket #2
**component:** code
**owner:** somebody
**reporter:** martin
**created:** 2014-09-18 10:33:54
**milestone:** 
**type:** task
**version:** 
**keywords:** 

the `format2icon.prop` is currently a stub. just for testing purposes.

add all the other urls and map them to correct icons:
* add all identifiers urls
* create a mapping for each of the icons