add [more] for desc over 100 words
走失協尋

- model
- Add a abstract AnimalCommonInfo model
- Add FindAnimal model
- FindAnimal and Animal model inherit from AnimalCommonInfo model

- Add templates, `find_animal.html` and `find_animal_upload.html`
- Add new routing urls and views
add friendship score of animal item based on the meta statements

higher score shows that the animal is more close to children/animal
Merge branch 'master' of https://github.com/jsleetw/petneed.me
新增走失協尋功能

Merge commit 'c22d38efa9bee543596ed86f932eb73f837311d7'

Conflicts:
	pets/animal/views.py
Merge pull request #21 from KevinC1118/master

新增走失協尋功能
try add avatar picture for user profile page
add form check
merge