Reiser4 for Linux-3.7

[Edward Shishkin <edward.shishkin@gmail.com>]

Changes since 3.6:

Ivan Shapovalov

. Port for linux-3.7;
. make reiser4 mapping not movable (always fail migration).

Edward Shishkin

. Ifdef reiser4_migratepage to prevent compilation error
   in the case when CONFIG_MIGRATION is not defined;
. Use separate foo_bugop() instead of the common bugop()
   to understand in what stub the oops occured;
. Don't set zeros to the body of ctail item in debug mode
   (where extra-modifications are highly undesirable);
. Use "dispatch" prefix for file operations, which pass
   management to FILE plugins in accordance with inode's
   plugin table (pset);
. Update comments.

Please, find here:
http://sourceforge.net/projects/reiser4/files/reiser4-for-linux-3.x/

Thanks,
Edward.