using Model.all.find_each in rails 3 raises an error and should not be recommended
lists the options for find_each and find_in_batches
Merge pull request #139 from rajcybage/master

Spelling mistake on the previous commit it should be standard not "standar"
Added bang method versions to association basics guide
Merge branch 'master' of github.com:lifo/docrails
Middleware in guide updated [ci skip]
Describe ActiveSupport core extensions for BigDecimal, JSON support, and instance variable names.
explaining ActiveRecord#first in rails 3 and 4
Merge branch 'master' of github.com:rails/docrails
instructions for variations and alternatives for ActiveRecord#find
doc: renaming table name to follow the file's standards
Merge branch 'master' of github.com:rails/docrails
Image optimized for web view

Used imageoptim, Saved few bytes
http://imageoptim.com/
replace => to : and also validates_presence_of to validates from active record examples and active model examples