Upgrade to Rails 4.1.0 WIP
transactions -> entries
transaction -> entry
Transactions -> Entries
Transaction -> Entry
rename files transaction -> entry, transactions -> entries
Add Rails Migration Generator
Merge branch 'add-generator', remote-tracking branch 'origin/rails-4.1'

* add-generator:
  Add Rails Migration Generator

* origin/rails-4.1:
  rename files transaction -> entry, transactions -> entries
  Transaction -> Entry
  Transactions -> Entries
  transaction -> entry
  transactions -> entries
  Upgrade to Rails 4.1.0 WIP
Merge remote-tracking branch 'keo/master'

Conflicts:
	Gemfile.lock
	app/models/debitcredit/entry.rb
	debitcredit.gemspec
	spec/test_app/db/schema.rb