Merge pull request rails#133 from yahonda/remove_duplicate_updateing_rubygems

Revert "Update rubygems to the latest one"

Author: fxn

bootstrap.sh

@@ -29,9 +29,6 @@ gem update --system -N >/dev/null 2>&1
 echo installing Bundler
 gem install bundler -N >/dev/null 2>&1
 
-echo updating rubygems
-gem update --system -N >/dev/null 2>&1
-
 install Git git
 install SQLite sqlite3 libsqlite3-dev
 install memcached memcached