fix syntax error and tests

ruby/lib/jam_ruby/resque/scheduled/music_session_scheduler.rb

@@ -28,7 +28,6 @@ module JamRuby
 
     def run
       # get all weekly sessions that started at least 4 hours ago
-      time_threshold = Time.now.
       criteria = "recurring_mode = 'weekly' AND scheduled_start + interval '4hours' < NOW() AND canceled = false AND next_session_scheduled = false"
       MusicSession.find_each(:conditions => criteria) do |music_session|
         music_session.copy

ruby/spec/jam_ruby/resque/music_session_scheduler_spec.rb

@@ -18,8 +18,8 @@ describe "MusicSessionScheduler" do
 
       MusicSession.all.count.should == 1
 
-      # end the session
-      ms.session_removed_at = Time.now
+      # move the session back more than 4 hours
+      ms.scheduled_start = Time.now - 5.hours
       ms.save!
 
       # run the scheduler again
@@ -27,7 +27,6 @@ describe "MusicSessionScheduler" do
 
       MusicSession.all.count.should == 2
 
-      MusicSession.where(:session_removed_at => nil).count.should == 1
       MusicSession.where(:next_session_scheduled => true).count.should == 1
     end
 
@@ -40,7 +39,7 @@ describe "MusicSessionScheduler" do
       @scheduler.run
       MusicSession.all.count.should == 1
 
-      ms.session_removed_at = Time.now
+      ms.scheduled_start = Time.now - 3.hours
       ms.save!
 
       @scheduler.run