Add FreeBSD specific versions of the GetProcessState and GetProcessStartTime
functions (Redmine #2330)
When checking the process state on FreeBSD, return PROCESS_STATE_RUNNING if
the state is SZOMB
Return false in GetProcessStat if sysctl does not return 0
Add parenthesis to sizeof to confirm to preferred code style
Don't cast pid as an int
Merge branch 'redmine_2330'