Merge pull request #216 from darabun/master

(feat) Style AB modal
(feat) Add Dashboard button to top bar
(feat) UX: Add loading notifiers for account, create_campaign
(feat)(cleanup) UX: Add styling; cleanup
(style) campaign_list styling
(style) dashboard: Minor styling
(fix) campaign_list: Fix styling
(feat) account: Signup redirects to create-campaign
(fix) fix login/signup error when no campaigns stored
Merge pull request #217 from lowi0008/master

(fix) fix login/signup error when no campaigns stored
Merge pull request #218 from lmle/client/UX

Client/UX
(feat) Update main CSS