add "multi_accept", "use" and "worker_rlimit_nofile" parameters management.
change "worker_rlimit_nofile" from false to nil
Remove default attribute that caused windows chef runs to fail

The same default value was already set in the recipe.  Removing it here
should result in the same outcome without failing chef runs on windows.
added nginx group
Add README entries for "event", "multi_accept" and "worker_rlimit_nofile".
Update README to add passenger root & ruby attrs
[COOK-1753] Add config attrs for nginx::passenger

Allow the following configuration options for Passenger:
* spawn_method; default=smart-lv2
* use_global_queue; default=on
* buffer_response; default=on
* max_pool_size; default=6
* min_instances; default=1
* max_instances_per_app; default=0
* pool_idle_time; default=300
* max_requests; default=0
libtool package is valid on other platforms besides ubuntu
COOK-1770 Check that the system has a 'cpu' attribute before setting the # of workers. If not, assume 1.
Use sv to reload nginx when using runit
set name attribute
Add amazon and scientific support to the source install
Use consistent mode declarations
Merge branch 'COOK-1735'
Merge pull request #31 from Youscribe/multi-rlimit-event

[COOK-1641] Multi rlimit event
use value_for_platform in passenger recipe so it works on debian family
Change empty string to nil
Merge pull request #44 from juliandunn/COOK-1770

COOK-1770 Check that the system has a 'cpu' attribute before setting the...
[COOK-1770] - per comment, check for cpu total
Merge pull request #33 from tas50/COOK-1683

COOK-1683 Remove default attribute that caused windows chef runs to fail