add test suite.
add iptables service regular commands.
add iptables lifecycle section.
add generate_iptables_config.
add basic lifecycle tests.
add disable_unload_module testing.
add generate_iptables_rule2.
show status before/after reload.
add show_iptables_rule_counters.
compare previous rule to current rule.
change test script naming policy.
Merge pull request #1 from hansode/lifecycle-test

Lifecycle test