GitLab

All REST calls are guarded by security token by default. It is selectively
disabled for some calls which are required to create new session.

- added EventCenter for receiving events from other modules
  and dispatching them to subscribers using server-sent events
- added events panel in UI, in dashboard page
- added entity links component in UI for presenting in UI entities
  link machine or app as an exposed box with link
- in Rakefile task serve_ui is changed: now it only builds UI,
  and UI is served by stork server over 8080 port and not using
  angular cli server by 4200 port (this is caused by not working
  SSE in angular cli proxy)
- added submitting events in several places

- added UI for global searching and presenting results
- added new server API function searchRecords that looks in different
  for indicated filter text
- alligned all Get*ByPage functions in server/database/model
  and Get* functions in server/restservice so they look
  and behave in the same way
- fixed, improved and unified searching on subnets, shared-networks
  and hosts pages - all data for searching goes through queryParams

- added web page for setting settings (among them URL to Grafana)
- added displaying links next to subnets on Stork dashboard
  that lead to Grafana dashboard filtered by given subnet
- reworked top bar menu for user profile, logout button, etc
- fixed Grafana template for DHCPv4 (removed default filtering)
- added logging in on enter key

- added presenting list of subnets on:
  - dedicated page
  - app page
- added new ReST API group: dhcp with subnet paths and definitions
- added retrieving subnets from db with filtering by app id,
  dhcp version and arbitrary text
- switched from tabMenu to tabView for showing daemons on kea app page
  because tabMenu was messing URL of current page in the browser
- added unit tests

The swagger.yaml file has been split into submodules. Each group
has 2 files: *-path.yaml with paths definitions and *-defs.yaml
with entities definitions.

Currently there are two groups:
- users-*
- services-*

Groups are being includes by swagger.in.yaml files.
All files are being combined by yamlinc tool.