Merge pull request #47 from anttikantee/master

simple fixes
fix fstest2
uncomment stat
minor cleanup
move netbsd syscall numbers to constants
move netbsd syscall numbers to constants - typos
comments
note on read return value inconsistency
add constants and types for neighbours (arp)
fix some missing constants in travis
cleanup nl
nl config for arp
add nll arp functions, but not working
doc update
fix table field name issue
clean up nlmsg flags, fix arp
add getneigh to test, returning unknown data
add delneigh to test
fix reading returned neigh entries
ppcspe is ppc from out pointof view