working on customer search template
customer search template finished
group customer implemented
change Fund to be polymorphic
update eer
add gem 'tzinfo-data' for windows
add Array#to_h patch for ruby < 2.1.0

The Array#to_h doesn't exist in the previous version of ruby.
fix some code of endowment
add time localize method
working on fund list
init i18n
working on fund show -> donation record
add some statistics attr to Project model

Move the statistics form controller to model
simple funds list implemented
add users controller
working on simpe_modal template
simple modal implemented
migrate customer group to simple modal
working on user search
user search implemented
contact record improved