no ui should be the default

/qb is for Basic UI
/qn is for No UI
Merge pull request #30 from hh/patch-1

no ui should be the default
add comment for /qn
release v1.8.6
[COOK-2729] - use stdlib URI class
Merge pull request #32 from opscode-cookbooks/jtimberman/COOK-2729

[COOK-2729] - use stdlib URI class
release v1.8.8
increment version for development