FSAL_LUSTRE: fixes CID24050 (unchecked return code)

Change-Id: If3b76813de992b48f972c1df79e6c64a4ec9d503
Signed-off-by: Philippe DENIEL <philippe.deniel@cea.fr>
Comments useless code. This code will be uncommented as code will be added in the config's commit functions.

FSAL_PROXY and FSAL_LUSTRE have block with *_commit functions, to be called during parsing to check configuration item.
Those functions are currently empty are are basically placeholders.
Setting a variable withut using it triggers a compilation error in Maintainer mode, so I commented this.
This piece of code will be uncommented as "flesh" will come in this part of the code.

Change-Id: I266d8000fa689e3f62e2d97b94f5cc9f69c54e9f
Signed-off-by: Philippe DENIEL <philippe.deniel@cea.fr>
Exports configuration: adds "All Anonymous" as an synonym for "All Squash"

The Squash=All statement replaces the old "ALL_ANONYMOUS" from older configuration file.
Adding Squash=All_Anonymous makes the change more intuitive to sysadms.

Change-Id: I29bfe7b908a675c21522905449dbf7db424974ad
Signed-off-by: Philippe DENIEL <philippe.deniel@cea.fr>