add stringify_command and overloaded stringification using this sub
unittests for stringify_command and overloaded stringification
get_command returns ref to array with command and args
add unittest for get_command
add the is_executable test
add unittests for is_executable
only support the executable from COMMAND and only log debug
Initialize stdout and stderr options to CAF::Process

Prevents uninitialized warnings, when execute() is called in NoAction
context.

Fixes #25.
get rid of 'uninitialized value' warnings
Add EU-Datagrid license (content downloaded from
http://eu-datagrid.web.cern.ch/eu-datagrid/license.html, formatted with
"fmt -t")
Merge pull request #37 from piojo/proc-stdout

Fix uninitialized warnings when running with --noaction
Merge pull request #38 from stdweird/resolve_undef_warning

get rid of 'uninitialized value' warnings
Merge pull request #39 from stdweird/license

Add EU-Datagrid license
make stringify test more obvious
Add stringify_process and is_executable to CAF::Process.

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