Fixes #4791 #4556 - command description issues

- missing command descriptions from api docs
- exception on empty command description
Merge pull request #96 from tstrachota/command_desc

Fixes #4791 #4556 - command description issues
Refs #3598 - bumped apipie-bindings version requirement

apipie-bindings < 0.0.6 didn't support setting timeouts
Fixes #4792 - Load configuration form /etc/hammer
Merge pull request #97 from mbacovsky/4792_configs_in_hammer

Fixes #4792 - Load configuration form /etc/hammer
Fixes #4835 - run with log level 'debug' in verbose
Merge pull request #98 from tstrachota/headers

Refs #3598 - bumped apipie-bindings version requirement
Merge pull request #99 from mbacovsky/4835_more_verbose

Fixes #4835 - run with log level 'debug' in verbose
Fixes #4861 -  Added option for debugging output
Refs #4849 - Hammer fails silently when no cache is generated
Merge pull request #100 from mbacovsky/4849-module_load_errors

4849 module load errors
Merge pull request #101 from mbacovsky/4861_very_verbose

Fixes #4861 -  Added option for debugging output
Bump to 0.1.0
Merge remote-tracking branch 'upstream/master'
Automatic commit of package [rubygem-hammer_cli] minor release [0.0.18-10].