Update old finders (for papyri#271)

Author: ryanfb

README.rdoc

@@ -219,7 +219,7 @@ publications.
       * cd REPOSITORY_ROOT/canonical.git && git repack && echo "" > objects/info/alternates
       * can check integrity afterwards with "git fsck"
     * rm -rf REPOSITORY_ROOT/boards/*.git REPOSITORY_ROOT/users/*.git
-  * can also delete every model instance from the console with e.g. User.find(:all).each{|u| u.destroy} but this can be tedious if there are loose instances of other models that aren't dependent-destroyed
+  * can also delete every model instance from the console with e.g. User.all.each{|u| u.destroy} but this can be tedious if there are loose instances of other models that aren't dependent-destroyed
 
 = XSugar Standalone
 * to start a local XSugar standalone server:

app/views/cross_site/_user_tabs.haml

@@ -66,7 +66,7 @@
             = link_to community.format_name, :controller => "User", :action => "user_community_dashboard", :community_id => community.id
 
         -#there is no real diff between this view and the user view        
-          - end_communities = Community.find(:all, :conditions => {:end_user_id => @current_user.id} )
+          - end_communities = Community.where(end_user_id: @current_user.id)
           - if end_communities && end_communities.length > 0
             %li
               Completed

app/views/user/user_dashboard.haml

@@ -30,6 +30,6 @@
   = link_to "Archived", :controller => 'user', :action => 'archives',  :id => @current_user.id
 
 - if defined?(@show_events)
-  - @events = Event.find(:all, :order => "created_at DESC", :limit => 25, :include => [:owner, :target])[0..24]
+  - @events = Event.order(created_at: :desc).limit(25).includes(:owner, :target)
   %h2 News Feed
   = render :partial => "events/list", :object => @events

lib/tasks/rpx.rake

@@ -2,7 +2,7 @@ namespace :rpx do
   desc "Unmaps all user mappings for the current environment and drops them from the database"
   task :unmap => :environment do
     @rpx = Rpx::RpxHelper.new(RPX_API_KEY, RPX_BASE_URL, RPX_REALM)
-    @users = User.find(:all)
+    @users = User.all
 
     for user in @users
       identifiers = @rpx.mappings(user.id)