feat(ingest): add provider polling interval config

SD-1023
tests(e2e): added prepopulation support; fixed login spec
tests(e2e): synced latest changes from liveblog
tests(e2e): synced from liveblog
fix(e2e: users): updated to work with real server
chore: fixed dependencies merge conflict
tests(e2e): synced with latest liveblog changes
fix(ui): Remove unnecessary libs and update existing

+ Update angular bootstrap ui
+ remove sliders and daterange pickers
fix(worldclock): Fix worldclock widget styles
fix(ui): Fix all dropdowns to work with new version of angular-bootstrap library
fix(ui): Fix archive and ingest
[SD-1212] Change slugline to keyword
Merge pull request #611 from petrjasek/devel

feat(ingest): add provider polling interval config
Merge pull request #531 from actionless/fix-e2e

tests(e2e): added prepopulation support; fixed login and users specs