NFS2 Patch

Hi

I've upload a new patch for NFS2 implementation.

* some refactor. Move the core classes of the nfs2 in net project
* changed the syntax of the nfsmount command. nfsmount directory host:remotedirectory
* the nfsmount command support auto complete . If you type nfsmount /a 192.168.2.108: and then TAB the system will show you all the exported directory on the host
* add protocol handler for nfs. I've tried with cp command and it works.
The syntax of the URL :
- nfs://host/remotePath - for read only. The remotePath is composed by exported directory and the path of the resource. For example if the /home/jnode it is exported directory ( in file /etc/export in linux) and we want to access file a.txt from /home/jnode directory the URL it is nfs://host/home/jnode/a.txt

- nfs://uid:gid@host/remotePath -for read write URL

The problem with this handler ( and i think it is the same situation for all handlers in the net project) it is that the plugin that contain the handler must be visible for URL class . This class it is in classpath plugin which is a system plugin . In the current code the protocols from the net it is not visible in classpath plugin . I will investigate this problem .

* improve a little the errors messaging . Unfortunately i can not improve all the errors messaging because some error come from host system like String. I will investigate this problem in the future.

Best regards

Andrei Dore