paydollar integration
Paydollar Integration

Adding integration helper and notification files.
Removed unused currencies hash
Updated notifications class

Changed the methods per the response from Paydollar
Minor comment change
Adding unit test files

Added files to test module, helper and notification
Unit test - Paydollar module

Fixed the test_notification_method
Added readme for Paydollar

This file contains code and usage details for Paydollar module.
Update README.PAYDOLLAR.md

Saving with proper indentation
Added comments and fixed indentation

Added yard friendly comments and fixed indentation to have only spaces
Added comments and fixed indentation

Added yard friendly comments and fixed indentation to have only spaces
Added notification processing

Added notification processing and yard friendly comment
Modified test cases for notifications

Modified the test cases to handle the notifications processing
Merge branch 'paydollar' of https://github.com/shintre/active_merchant into paydollar
Checking for existence of params['secureHash'] before calling upcase

If the params['secureHash'] is nil then we don't want to try upcase
Update README.PAYDOLLAR.md

Added usage details for handling DataFeed via Notification
Minor text change
Specifying nokogiri version as 1.5.10

The nokogiri version 1.6.0 and above do NOT support ruby 1.8.7.
However, the code in active_merchant is expected to work with
1.8.7. Hence, specifying the nokogiri version to be used.
Using exact version of nokogiri as 1.5.9

Some old files refer to version 1.5.9 so using this exact version
Merge branch 'master' of https://github.com/shintre/active_merchant into paydollar