* prepared interfaces and naive implementation for restricted words
* fixed whitespace tokenizer last token handling
* removed unnecessary check in whitespace tokenizer last token handling
* removed unnecessary interfaces, added matcher to service
* now using more explicit naming
* added config parameter/env variable to configure restricted words
provided simple matcher and lister implementation into service
* fixed linter warnings
* fixed linter warnings (part 2)
* added functional tests for rest api
moved check for restricted words into validation stage
* fixed missing error check in rest private test
* fixed failed test that expected validation in specific order
* fixed linter warning
* removed unnecessary 'else'
* removed redundant check from 'DataStore.EditComment'
* replaced exact matching for restricted words with wildcard matching
* fixed race condition when creating wildcardTrie
removed unnecessary wildcard masks
refactored tests in a table format
* improved documentation for restricted words param
* removed wildcardTrie caching as a premature optimization
removed unnecessary validation method ValidateCommentText
moved restricted words validation into service methods that create and update comment
* fixed error name due to linter warning
* remove cache, switch to go-pkgz/rest/cache
* remove mongo cache from server test
* remove old caching code
* test tricky disqus inputs
* fix migrator test
* stacktrace dump test
* import with two-stages, wait api and prevnts double run for the same site #231
* lint: missing err check on tmp import file removal
* catch SIQQUIT
* add imprter comments
* add new import apis to spec
* add test for form import
* timeout for import wait api
* lint: uncecked errs
* add le support
* fix log info
* change readme for autocert mode
* rename acme location param
* add test for http challenge
* add acme-email param
* do tls config more sane