moved 'common' consts and interfaces to 'common.go'
Merge branch 'master' into cleanup
for package erasure, switched 'block' to 'sector' and 'slice' to 'segment'
get rid of records, rename swarm to quorum
move package erasure to using common.QUORUMSIZE instead of common.SWARMSIZE
clean up slice handling code
Merge pull request #52 from DavidVorick/cleanup

Cleanup