bower.json: specify lodash as a dependency
bower.json: specify lodash as a dependency

This came in via restangular, but as it's now being used on its own
it should get specified individually.

artefactual-labs/appraisal-tab,eckardm/appraisal-tab,eckardm/appraisal-tab,djpillen/appraisal-tab,djpillen/appraisal-tab,artefactual-labs/appraisal-tab