Release 1.1.0
Release 1.1.0

Adds stdin support, which allows passing data to stdin of the command run.
Also adds additional spec tests.

docwhat/mixlib-shellout,juliandunn/mixlib-shellout,juliandunn/mixlib-shellout,chef/mixlib-shellout,Nordstrom/mixlib-shellout,chef/mixlib-shellout,BackSlasher/mixlib-shellout,BackSlasher/mixlib-shellout,docwhat/mixlib-shellout