New split of quota headers

  Hello Andrew,

  after Adrian's comments and a bit of thinking, I've decided to split
quota headers differently which also solves the issue with new header file
which should be exported. I found out it is enough to move some functions
into quotaops.h where they logically also fit nicely. So please replace
my patches:
+ ext4-add-explicit-include-of-linux-quotah-into-ext4_jbd2h.patch
+ ext2-add-explicit-include-of-linux-quotah-into-superc.patch
+ quota-split-out-quota_structh-out-of-quotah.patch
+ quota-convert-macros-to-inline-functions.patch

with the two patches which will follow. Thanks and sorry for additional
work.

									Honza
-- 
Jan Kara <jack@suse.cz>
SUSE Labs, CR