* fix admin name check for anon login #605
* update readme with admin names info
* lint: list of static site params
* typo
* don't allow email users to reuse admin names
* move admin.names to restricted-names
* forgotten names member
* remove names from example admin
* remove names from prepTestStore
- add proper formatting to Readme instructions
- fix docker-compose yaml
- add Enabled flag to admin storage, as without it I saw following error on trying to post a comment:
```
mem_store.r42 | 2020/04/03 15:53:52.433 [INFO] {logger/logger.go:120 logger.(*Middleware).Handler.func1.1} POST - /cmd - 172.20.0.3 - 200 (25) - 126.8µs - {"method":"admin.enabled","params":"remark","id":29}
remark42 | 2020/04/03 15:53:52.434 [WARN] {rest/httperrors.go:85 rest.SendErrorJSON} can't save comment - failed to prepare comment: can't get secret for site remark: site remark disabled - 500 (0) - dev_user/dev_user - /api/v1/comment - [rest/api/rest_private.go:121 api.(*private).createCommentCtrl]
```
Flag was originally added 106c018ef1
@paskal
* sort imports, add missing copyright
* regenerate engine mock
* make all image.Store interface functions public
* go mod tidy
* make image.Store.Load return []byte instead of io.ReadCloser
* separate memory_store example RPC server to multiple files by handlers groups
* improve TestServer* reliability
* improve TestService_UserReplies reliability
* increase timeout for Test_Main
* improve TestRest_CreateWithPictures readability and reliability
* introduce random port to REST over SSL tests
* tinker TestRest_InfoStreamSince to have more slack before failure
* finalize test errors check unification
* simplify prepServerApp in cmd package tests
* improve TestRest_InfoStreamCancel reliability
* explicitly ignore error from test connection close
* add client with timeout to places which used default http client
* move random port creation and waiting for server in separate function for reuse
* improve TestServer tests robustness
* move all server waiting code in tests to separate functions
* change chooseRandomUnusedPort to try to listen to port before return
* fix waitForHTTPSServerStart
* enable golangci-lint for momeory_store example
* add race_test option to makefile
* prune lost goroutine in TestRest_Shutdown
* run race tests without cache
* fix ci pipeline
* fix typos