Add javadoc to the proxy filter.

Signed-off-by: Clement Escoffier <clement.escoffier@gmail.com>
Fix #380

Signed-off-by: Clement Escoffier <clement.escoffier@gmail.com>
Extend javadoc package list

Signed-off-by: Clement Escoffier <clement.escoffier@gmail.com>
Provide a filter returning REDIRECT result.

Signed-off-by: Clement Escoffier <clement.escoffier@gmail.com>
Add documentation about the redirect filter

Signed-off-by: Clement Escoffier <clement.escoffier@gmail.com>