* register list, install, and uninstall endpoints
* decorate server with methods needed to register data sets
* implement list endpoint, add flights sample data set
* stream data file
* create sample data index with mappings
* bulk insert into elsaticsearch
* more loadBulk work
* advance time stamp
* change http method back to post
* delete index on uninstall
* last 15 minutes example
* add option to preserver day of week and time of day
* import saved objects on install and delete saved objects on delete
* update uiSetting defaultIndex on install and uninstall
* use correct format for saved object json
* Adding example sample data, mappings and dashboards
* add sample data tab to Add Data page
* add launch button
* add sample data link to empy index pattern create state
* fix jest tests
* add toast nofication on success and fail install/uninstall
* move uiSettings of defaultIndex to client, clear index patterns get id cache
* put link to sample data sets on home page
* updated saved objects and data set
* add card for sample data
* add preview image
* updated dashboards and data set
* update button text
* woops, forgot vega
* compress data json file
* move flights data file to same folder as saved objects file
* add functional tests
* updates from chrisdavies review
* fix install API call - broken on last commit
* fix mistake in create_index_pattern
* updates from Stacey-Gammon review
* remove delete from install API
* add more tests to ensure dashboard renders as expected
* better error message on install and uninstall failure
* remove checks that may change from run to run to keep functional tests stable
* update scripted field to reflect changes in ES
* change saved object install/uninstall error code from 500 to 403
* add more logic to check if dataset is installed and display a disabled add button when there is a problem checking status
* make add data links be side-by-side on home page
* propery handle savedObjectClient bulkCreate errors. Ensure launch dashboard exists in test if dataset is installed
* ignore saved object delete 404s since users could have deleted some of the saved objects via the UI
* show response error in toast, delete index before trying to create, log create index error