Fix time zones in specs

Two specs were failing due to the way time zones were being compared.

ruby -v

    ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-linux]

Gemfile.lock


    PATH
      remote: .
      specs:
        validates_timeliness (3.0.14)
          timeliness (~> 0.3.7)
    
    GEM
      remote: http://rubygems.org/
      specs:
        actionmailer (3.2.9)
          actionpack (= 3.2.9)
          mail (~> 2.4.4)
        actionpack (3.2.9)
          activemodel (= 3.2.9)
          activesupport (= 3.2.9)
          builder (~> 3.0.0)
          erubis (~> 2.7.0)
          journey (~> 1.0.4)
          rack (~> 1.4.0)
          rack-cache (~> 1.2)
          rack-test (~> 0.6.1)
          sprockets (~> 2.2.1)
        activemodel (3.2.9)
          activesupport (= 3.2.9)
          builder (~> 3.0.0)
        activerecord (3.2.9)
          activemodel (= 3.2.9)
          activesupport (= 3.2.9)
          arel (~> 3.0.2)
          tzinfo (~> 0.3.29)
        activeresource (3.2.9)
          activemodel (= 3.2.9)
          activesupport (= 3.2.9)
        activesupport (3.2.9)
          i18n (~> 0.6)
          multi_json (~> 1.0)
        appraisal (0.5.1)
          bundler
          rake
        arel (3.0.2)
        bson (1.8.0)
          activesupport
        bson_ext (1.8.0)
          bson (~> 1.8.0)
        builder (3.0.4)
        columnize (0.3.6)
        debugger (1.2.2)
          columnize (>= 0.3.1)
          debugger-linecache (~> 1.1.1)
          debugger-ruby_core_source (~> 1.1.5)
        debugger-linecache (1.1.2)
          debugger-ruby_core_source (>= 1.1.1)
        debugger-ruby_core_source (1.1.5)
        diff-lcs (1.1.3)
        erubis (2.7.0)
        hike (1.2.1)
        i18n (0.6.1)
        journey (1.0.4)
        json (1.7.5)
        linecache (0.46)
          rbx-require-relative (> 0.0.4)
        mail (2.4.4)
          i18n (>= 0.4.0)
          mime-types (~> 1.16)
          treetop (~> 1.4.8)
        mime-types (1.19)
        mongo (1.8.0)
          bson (~> 1.8.0)
        mongoid (2.3.4)
          activemodel (~> 3.1)
          mongo (~> 1.3)
          tzinfo (~> 0.3.22)
        multi_json (1.4.0)
        nokogiri (1.5.5)
        polyglot (0.3.3)
        rack (1.4.1)
        rack-cache (1.2)
          rack (>= 0.4)
        rack-ssl (1.3.2)
          rack
        rack-test (0.6.2)
          rack (>= 1.0)
        rails (3.2.9)
          actionmailer (= 3.2.9)
          actionpack (= 3.2.9)
          activerecord (= 3.2.9)
          activeresource (= 3.2.9)
          activesupport (= 3.2.9)
          bundler (~> 1.0)
          railties (= 3.2.9)
        railties (3.2.9)
          actionpack (= 3.2.9)
          activesupport (= 3.2.9)
          rack-ssl (~> 1.3.2)
          rake (>= 0.8.7)
          rdoc (~> 3.4)
          thor (>= 0.14.6, < 2.0)
        rake (10.0.2)
        rbx-require-relative (0.0.9)
        rdoc (3.12)
          json (~> 1.4)
        rspec (2.12.0)
          rspec-core (~> 2.12.0)
          rspec-expectations (~> 2.12.0)
          rspec-mocks (~> 2.12.0)
        rspec-core (2.12.1)
        rspec-expectations (2.12.0)
          diff-lcs (~> 1.1.3)
        rspec-mocks (2.12.0)
        rspec-rails (2.12.0)
          actionpack (>= 3.0)
          activesupport (>= 3.0)
          railties (>= 3.0)
          rspec-core (~> 2.12.0)
          rspec-expectations (~> 2.12.0)
          rspec-mocks (~> 2.12.0)
        rspec_tag_matchers (1.0.0)
          nokogiri (>= 1.4.0)
          rspec-rails (>= 1.2.6)
        ruby-debug (0.10.4)
          columnize (>= 0.1)
          ruby-debug-base (~> 0.10.4.0)
        ruby-debug-base (0.10.4)
          linecache (>= 0.3)
        sprockets (2.2.2)
          hike (~> 1.2)
          multi_json (~> 1.0)
          rack (~> 1.0)
          tilt (~> 1.1, != 1.3.0)
        sqlite3 (1.3.6)
        sqlite3-ruby (1.3.3)
          sqlite3 (>= 1.3.3)
        system_timer (1.2.4)
        thor (0.16.0)
        tilt (1.3.3)
        timecop (0.5.4)
        timeliness (0.3.7)
        treetop (1.4.12)
          polyglot
          polyglot (>= 0.3.1)
        tzinfo (0.3.35)
    
    PLATFORMS
      ruby
    
    DEPENDENCIES
      appraisal
      bson_ext
      debugger
      mongoid (~> 2.3.0)
      rails (~> 3.2.6)
      rspec (~> 2.8)
      rspec-rails (~> 2.8)
      rspec_tag_matchers
      ruby-debug
      sqlite3
      sqlite3-ruby
      system_timer
      timecop
      validates_timeliness!