add default delimiter for answers which need to be stored in db
replace rapidfire splits, joins with configurable delimiter
add a task to convert delimiter from , to \r\n
remove requiring rapidfire from dummy app
update travis with 2.1.4, rails 4.1.x and fix rspec-rails version for devlopment
bump up version, and update readme with steps to upgrade to 2.0.0
Merge pull request #34 from code-mancers/provide-delimiter-config-for-answers

Provide delimiter config for answers