Classify user-input errors on postback

Make CSS selectors simpler for user-input errors.
Merge pull request #167 from manuelbua/patch-1

Classify user-input errors on postback
Fixed autofocus logic
Merge branch 'master' of github.com:mrjoes/flask-admin
Added fork reason to README
added hooks on file admin for : rename/edit/upload/mkdir/delete.
Update fileadmin.py
- add support for case-insensitive search

- supports case-insensitive searches
- update comments
- update docs

- correct spelling
- update docs

- correct spelling, again
Setting admin endpoint url='/' allows non index_view views to generate url
from endpoint.
Can set the static_url_path for underlying blueprints.
Merge pull request #180 from chrishaines/develop

Setting admin endpoint url='/' allows non index_view views to generate url from endpoint
Merge pull request #181 from chrishaines/static

Can set the static_url_path for underlying blueprints.
Use InputRequired instead of deprecated Required wtform validator

InputRequired allows value of '0' as an IntegerField value.
Always use multipart/form-data for all forms. Allows using file fields in inline forms
Merge pull request #177 from cbess/master

Allow case-insensitive searches in admin
Merge pull request #182 from fusic-com/master

Use InputRequired instead of deprecated Required wtform validator
Fixed #172
Merge branch 'master' of github.com:mrjoes/flask-admin