all xlators are now in lower case.
xlators have been renamed as category/name. there is a top level category directory and sub directory for actual xlator.

summary of categories and renaming done -

1. Transport category (xport)
   Brick -> xport/socket

2. Optimizers/performance booster category (steroid)
   getattr -> steroid/stat-prefetch

3. Storage/File system category (storage)
   Posix -> storage/posix

4. Schedulers category (sched)
   Cement -> sched/unify


filter xlator is under discussion for its design still. One proposal -

--porposal--

5. Filtering category (filter)
   filter/read-only
   filter/hide
   filter/block
   filter/file-size-limit

each of those will be seperate translators under the filter category. more discussion to be done about chaining of multiple xlators of filter or group them into one (and effect of both approaches) to be done.
--end-proposal--


since all translators so far are following the discipline of declaring all functions  static there is no namespace issues (yet).

all inner variable and function names are to be renamed by
translator authors to follow the new naming convention