Check parsed attached Files

Express.js supports attached files using rea.files.
http://expressjs.com/api.html#req.files

A validation of these files is also required in many cases.
Return sanitized value from req.sanitize()

In older versions of express-validator, the sanitized value was returned
from req.sanitize. With the shift to validator.js v3, that behavior was
lost.

For consistency, req.sanitize() should return the sanitized value, just
like validator.js.
Update express_validator.js
Fixed arguments usage for strict compliance
Fixed function call order
Merge pull request #89 from killroy42/master

Fixed arguments usage for strict compliance
Bump version to 2.1.2
Merge pull request #40 from gkorland/patch-2

Check attached Files
Bump version to 2.2.0
Merge pull request #86 from r3mus/master

Fix for checkHeader crash
Add a check if req.files array is not undefined before accessing it
Merge pull request #91 from antoineverger/master

Add a check if req.files array is not undefined before accessing it
Merge pull request #84 from dpolivy/returnfromsanitize

Return sanitized value from req.sanitize()
Bump version to 2.3.0
add the method optional() who disables the checks if value is undefined
add documentation on README
Add support for custom validators
whitespace cleanup
Merge pull request #96 from qualtrics/master

Add support for custom validators
Bump version to 2.4.0