CBQE-1481: Initial commit for non-sudo cb setup

- Work still in progress
- Setup follows the instructions as per documentation
- Included the setup just for centos, ubuntu as of now
- TODO: windows, mac implementation
- TODO: more tests perhaps

Change-Id: Ida20d869de6d0100eb516757fe99d96ca862a1f9
Reviewed-on: http://review.couchbase.org/27893
Reviewed-by: abhinav dangeti <abhinav.dangeti@gmail.com>
Tested-by: abhinav dangeti <abhinav.dangeti@gmail.com>
MB-100: larger value size analysis

Change-Id: If02b236ebae4d3e19eca2f07fa88f2842d4776cd
Reviewed-on: http://review.couchbase.org/28236
Reviewed-by: Ronnie Sun <ronnie@couchbase.com>
Tested-by: Ronnie Sun <ronnie@couchbase.com>
CBQE-1481: non-sudo non-root install automation

- Point to the corrected build for test

Change-Id: I7c192564403c280bbd5535ae806b0c51ceb04d95
Reviewed-on: http://review.couchbase.org/28237
Reviewed-by: abhinav dangeti <abhinav.dangeti@gmail.com>
Tested-by: abhinav dangeti <abhinav.dangeti@gmail.com>