Don't honor splay setting when sent USR1 signal.
Updates based on PR comments.
Make the spec for USR1 signal faster.
Workaround ruby 1.8 IO#getc returning integer types

Also make test more likely to halt when failing.
Merge pull request #1308 from opscode/CHEF-4396

Don't honor splay setting when sent USR1 signal.
CHEF-3698: Do not set log_level by default

The default log level for Chef 10 was "info" but on Chef 11 it is "auto"
which does not work on Chef 10. This prevents you from bootstrapping a
Chef 10 node from a Chef 11 workstation. We can leave out log_level and
Chef will use the built in defaults.
Map 'ibm_powerkvm' to Red Hat-like package manager

Include 'ibm_powerkvm' in provider mappings.

Fixes CHEF-5135
CHEF-5135: Add contribution documentation
[11] Don't catch SIGTERM if not in daemon mode

This doens't make sense if not in daemon mode.