Increased default expire of cache from 1 day to 7 days.

lib/cache.rb

@@ -18,9 +18,9 @@ write a cache
 
   Cache.write(
     'some_key',
-    { :some => { :data => { 'structure' } } },
+    { some: { data: { 'structure' } } },
     {
-      :expires_in => 24.hours, # optional
+      :expires_in => 24.hours, # optional, default 7 days
     }
   )
 
@@ -28,7 +28,7 @@ write a cache
 
   def self.write( key, data, params = {} )
     if !params[:expires_in]
-      params[:expires_in] = 24.hours
+      params[:expires_in] = 7.days
     end
     begin
       Rails.cache.write(key.to_s, data, params)