interface to import mails automatically

Gemfile.lock

@@ -67,6 +67,7 @@ GEM
     debug_inspector (0.0.2)
     diff-lcs (1.2.5)
     erubis (2.7.0)
+    excon (0.49.0)
     execjs (2.6.0)
     font-awesome-rails (4.6.1.0)
       railties (>= 3.2, < 5.1)
@@ -93,6 +94,9 @@ GEM
       nokogiri (>= 1.5.9)
     mail (2.6.4)
       mime-types (>= 1.16, < 4)
+    mailchimp-api (2.0.6)
+      excon (>= 0.16.0)
+      json (>= 1.7.7)
     method_source (0.8.2)
     mime-types (3.0)
       mime-types-data (~> 3.2015)
@@ -229,7 +233,6 @@ GEM
       railties (>= 3.1, < 5.0)
       slim (~> 3.0)
     slop (3.6.0)
-    spring (1.6.4)
     sprockets (3.5.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
@@ -266,6 +269,7 @@ DEPENDENCIES
   geocoder
   jbuilder (~> 2.0)
   jquery-rails
+  mailchimp-api
   mongoid (~> 5.0.0)
   mongoid-rspec (= 3.0.0)
   mongoid_paranoia
@@ -281,7 +285,6 @@ DEPENDENCIES
   simple_form
   slim
   slim-rails
-  spring
   turbolinks
   uglifier (>= 1.3.0)
   web-console (~> 2.0)