doc/ck_pr: Additional documentation.
doc/ck_pr: Additional documentation and targets.
doc/ck_bag_init: Correct formatting error.
doc/ck_pr: Do not cross-reference non-existant functions.
doc/ck_pr: Fix typo in ck_pr_neg manual page.
doc/ck_pr: Additional manual pages.
ck_hp: hp_acquire patterns require strict fences under TSO.

Several counter-examples were found which break in the
presence of store-to-load re-ordering. Strict fence
semantics are necessary.

Thanks to Paul McKenney for helpful discussions.
ck_hp_stack: Style fixes.
ck_hp_fifo: Style fixes.
regressions/ck_list: Coverage for INSERT_AFTER/INSERT_BELOW.
ck_queue: Add traversal-safe SPMC STAILQ.
doc/ck_pr: Add ck_pr_cas manual page.
doc/ck_pr: Add ck_pr_bt{c,r,s} manual pages.
doc/ck_hs: Fix title for ck_hs_iterator_init.
doc/ck_cohort: Minor fixes.
doc/ck_pr: Add ck_pr_load manual page.
doc/ck_pr: Add ck_pr_store manual page.
doc/ck_pr: Additional improvements to ck_pr_load manual page.
doc/ck_pr: Passive voice fixes.
Merge branch 'master' of https://github.com/davidjoseph/ck