command cancel throws non zero exit code if cancel fails due to completion, some prints, move to alternate version numbering
1. retry logic when inline = true and server returns 449. retry is with exponential backoff with backoff multiplier as 2 and initial delay of 20 secs. Max 4 retries are done.
2. When inline = False, added check for eventual consistency before downloading data. If complete data is not available then raise exception
bug fix.
Add cluster retrieving information from sdk
Merge pull request #15 from qubole/rj_branch

Add cluster retrieving information from sdk
add cli interface to get hadoop cluster information
modify cli help to reflect hadoop_cluster command
Merge pull request #12 from vrajat/master

Parse macros to objects instead of passing it as string all the way to t...
Add support to replace ctrl-a by '\t' while fetching results
read via stream and replace values instead of reading all the contents to a string and then replacing it
message should be logged to log object.
Merge pull request #14 from guptarajat/master

449 status handling in get_results and retry logic in get_results for eventual consistency of s3
minor changes
Merge pull request #16 from qubole/rj_branch

Add support to replace ctrl-a by '\t' while fetching results
update version to 1.0.8
Merge pull request #17 from vrajat/master

Add files and archives support for shell command
Added --skip_ssl_cert_check option
Merge pull request #18 from nonbeing/master

Added --skip_ssl_cert_check option
For http status 503, do a retry
Merge pull request #19 from Randgalt/master

For http status 503, do a retry