ck_cohort: Added trylock support to cohort framework
Merge branch 'master' of https://github.com/sbahra/ck
ck_cohort: Updated documentation to reflect trylock support
ck_cohort: Cleaned up documentation changes
Merge branch 'cohort_trylock' of git://github.com/bscheinman/ck
regressions/ck_cohort: Whitespace cleanup.