added support for nested configuration settings

Author: Pedro Salgado

templates/home/user/.aws/config.j2

@@ -8,7 +8,14 @@
 [profile {{ profile }}]
 {%     endif %}
 {%     for parameter, value in awscli_configuration[ config ].iteritems() | sort %}
+{%       if value is mapping %}
+{{ parameter }} =
+{%         for nested_parameter, nested_value in value.iteritems() | sort %}
+    {{ nested_parameter }} = {{ nested_value }}
+{%         endfor %}
+{%       else %}
 {{ parameter }}={{ value }}
+{%       endif%}
 {%     endfor %}
 {%   endfor %}
 {%  endif %}

tests/files/home/user/.aws/config

@@ -3,6 +3,8 @@
 [default]
 output=json
 region=us-west-2
+s3 =
+    max_concurrent_requests = 3
 
 [profile user2]
 output=text

tests/vars/travis.yml

@@ -9,6 +9,8 @@ awscli_configuration:
   default:
     region: us-west-2
     output: json
+    s3:
+      max_concurrent_requests: 3
   conf_east1_text:
     region: us-east-1
     output: text

tests/vars/vagrant.yml

@@ -9,6 +9,8 @@ awscli_configuration:
   default:
     region: us-west-2
     output: json
+    s3:
+      max_concurrent_requests: 3
   conf_east1_text:
     region: us-east-1
     output: text