restart search if no dois found in session
better formatting
use double quotes
Merge pull request #42 from mfenner/session

Handle session without dois
moved session logic into new Cart model
refactored update_session logic
renamed @saved_dois to @cart
refactored update_session
renamed @saved_dois to @cart
remove multiple dois from cart
added controller specs for update_session action
updated Cheffile
Remove performance expectation from generate_report_spec. See https://github.com/articlemetrics/alm-report/pull/43#issuecomment-56259767 for more info.
Merge branch 'master' of github.com:articlemetrics/alm-report
Merge pull request #43 from mfenner/doi_limit

Refactored SavedDOI into Cart model.
Merge and resolve merge conflicts with master.