Update CommonsUploadMultipartInterceptor.java

Added validation error in FileUploadException.
Issue #589
Update CommonsUploadMultipartInterceptor.java

Indent
Update CommonsUploadMultipartInterceptor.java

Indent
Update CommonsUploadMultipartInterceptor.java

ValidationMessage import
Update CommonsUploadMultipartInterceptor.java

Indent
Update CommonsUploadMultipartInterceptor.java
Update CommonsUploadMultipartInterceptor.java
Update CommonsUploadMultipartInterceptor.java
Created JUnit Test Case for Validator message when FileUploadException
Issue #589
Now we get category name only when needs
Converting space to tabs
Fixing spaces in test classes
Merge pull request #591 from caelum/ot-methodvalidationwithcategorynames

Now we get category name only when needs
Merge pull request #592 from caelum/ot-space2tabs

Converting space to tabs
Merging code from GGotardo/vraptor
Space to tabs
Removing servlet upload, since doesn't work with servlet filters
Merge pull request #593 from caelum/ot-goodbye-servletupload

Removing servlet upload, since doesn't work with servlet filters