Update the Gemfile and CI build

Gemfile

@@ -11,7 +11,6 @@ if RUBY_VERSION < '1.9'
 end
 
 # AR
-gem "arel", ">= 0.2.0"
 gem "sqlite3-ruby", ">= 1.2.5"
 
 group :test do

ci/ci_build.rb

@@ -106,7 +106,7 @@ def rake(*tasks)
 puts "[CruiseControl]   SQLite3: #{`sqlite3 -version`}"
 `gem env`.each_line {|line| print "[CruiseControl]   #{line}"}
 puts "[CruiseControl]   Bundled gems:"
-`gem bundle --list`.each_line {|line| print "[CruiseControl]     #{line}"}
+# `gem bundle --list`.each_line {|line| print "[CruiseControl]     #{line}"}
 puts "[CruiseControl]   Local gems:"
 `gem list`.each_line {|line| print "[CruiseControl]     #{line}"}