Moving towards a slightly more standard project layout
Created the `data_source` abstraction to allow for multiple kinds of data sources.
merge
Created the `data_source` abstraction to allow for multiple kinds of data sources.
Merge branch 'datasource' of github.com:astine/ROQTI into datasource
Merge branch 'development' of github.com:skunath/ROQTI
Created the `data_source` abstraction to allow for multiple kinds of data sources.
Merge branch 'datasource' of github.com:astine/ROQTI into datasource
irr
Merge pull request #27 from merkhofer/interest_rate_calculators

Internal Rate of Return, NPV takes an array
Merge pull request #28 from skunath/interest_rate_calculators

Interest rate calculators
fixed for merge
Merge pull request #30 from skunath/datasour

Datasour
fixed for merge
Merge pull request #9 from skunath/datasour

Datasour
Chapter 1 Tests
Merge pull request #34 from asyndent/chap1tests

Chap1tests
Tests for interest_rates.rb

Tests for interest_rates.rb
Tests for chapter 2

Tests for chapter two.
test chap 2

test chap 2