fixed ticket #403: SQL syntax error on updateUser
fixed ticket #409: can't change user privilege
fixed ticket #392: added restrictions on '*' about the URI format
Fixed tickets #408, #409
 * For ticket #408: the current user sessions are now closed if the user account has been locked
 * For ticket #409: the downgrading of privilige was not considered. This is now the case
fixed indentation
FMS: allow empty path when calling ls API

This was previously fixed in the CLI, now it has been backported in the API
fixes #398
FMS: fix a subtil bug in ls when filename contains ':'

fixes #419