Add Allow and ExtendedStatus support to mod_status (rebase of #419)

[dbeckham]

This is a rebase of 555e0f7 submitted in #419 against the most recent mod_status changes. I also added class docs and cleaned up the testing a bit as well as added a couple of extra test cases. rake spec finishes cleanly.

_Commit Message:_

I've extended the apache::mod::status class to accept an $allow_from
parameter similar to the existing apache::mod::info class, as well as
added an $extended_status parameter to control the ExtendedStatus
directive.

Added module docs and full testing support as well as updated the
README.md to indicate that the status class accepts additional
parameters.

[igalic]

rake spec is, indeed passing, but right now rake spec:system is not

Failures:

  1) apache::default_mods class no default mods should apply with no errors
     Failure/Error: [0,2].should include(r.exit_code)


     # ./spec/system/default_mods_spec.rb:24:in `block (4 levels) in <top (required)>'
     # ./spec/system/default_mods_spec.rb:23:in `block (3 levels) in <top (required)>'

  2) apache::default_mods class no default mods Service "httpd"
     Failure/Error: it { should be_running }
       ps aux | grep -w -- httpd | grep -qv grep
     # ./spec/system/default_mods_spec.rb:31:in `block (4 levels) in <top (required)>'

  3) apache::mod::event class running puppet code should work with no errors
     Failure/Error: r.exit_code.should_not == 1


     # ./spec/system/prefork_worker_spec.rb:24:in `block (4 levels) in <top (required)>'
     # ./spec/system/prefork_worker_spec.rb:23:in `block (3 levels) in <top (required)>'

Finished in 17 minutes 25 seconds
62 examples, 3 failures

Failed examples:

rspec ./spec/system/default_mods_spec.rb:15 # apache::default_mods class no default mods should apply with no errors
rspec ./spec/system/default_mods_spec.rb:31 # apache::default_mods class no default mods Service "httpd"
rspec ./spec/system/prefork_worker_spec.rb:15 # apache::mod::event class running puppet code should work with no errors

[dbeckham]

Yes, I failed to actually run the system test. I'll correct the issue and push a combined change.

[apenney]

Don't worry, those spec errors are fixed in master.

[dbeckham]

Awesome, thanks for merging this.