Merge branch 'stable-3.0'
* stable-3.0:
Remove unused JSON_PREFIX constant
Fix adding additional ssh-keys via UI
Allow additional SSH-key formats
Switch required bazel version to 0.29.1
Upgrade bazlets to latest stable-3.0
Upgrade bazlets to latest stable-2.16
Upgrade bazlets to latest stable-2.15
Bump required bazel version to 1.0.0rc2
Upgrade bazlets to latest stable-2.14
Remove unwanted char from user details screen
Fix visibility of service users for non-admin owners
Fix setting a new owner from UI
Add validation for SSH-key before account creation
Apply GJF-1.7 codestyle
Upgrade bazlets to latest stable-2.15
Upgrade bazlets to latest stable-2.14
Add PolyGerrit UI for creating a service user
Upgrade bazlets to latest stable-3.0 to build with 3.0.2 API
Modify the detail-screen to allow editing the service user
Upgrade bazlets to latest stable-2.16 to build with 2.16.11.1 API
Upgrade bazlets to latest stable-2.15 to build with 2.15.16 API
Add PolyGerrit UI for showing service user details
Add PolyGerrit UI to list service users
Add eslint config
Upgrade bazlets to latest stable-2.15 to build with 2.15.15 API
Change-Id: I6fb19f26391e9a779dc39b59b92b1dd9d0855307