Building fixes

Validator work
Character files validated

Hobbits cleared so far (needs to be checked with a better use of the
validator)
Duplicate IDs
Missing/invalid Nicknames
Wrong gender
Character history fixes

from the validator :
Added the staves of the blue istari (WIP)
Duplicated ID (ents missing with eagles and dragons)
Gender and nickname fixes
Merge pull request #116 from Middle-Earth-Project-Team/master

Catching up branch