Merge pull request #74 from haio/master

Offset#fetch support negative time
0.2.1
fixing bug with metadata refresh
fixing typo
fixing generation of errors
fixing initial setting of offset
pre-merge
Merge pull request #80 from ripjar/master

Fixes cluster zk issue
Typo
0.2.2
Correctly handling zk client loss
Double-check partition ownership
removing potential for denial of service
Pause spinning
Pause spinning
Merge pull request #82 from ripjar/master

Correctly handling zk client loss
0.2.3
Don't infinite loop if offsetNum starts at 0
trim trailing whitespace and check for cb in wrap
Merge pull request #83 from ngoyal/master

Don't infinite loop if offsetNum starts at 0