* (wip): outline for hashtag flow

* (feat): introduces cockroach db

* [Sprint/Universe] [WIP] (goal): hashtags (#649)

* (feat): autocomplete trending hashtags

* (feat): index group hashtags

* [Sprint/Xray] (goal): hashtags and suggested feeds (#660)

* (feat): added User/Repository->getSuggestedHashtags
(fix): fixed namespaces issue

* (feat): iimplemented HashtagsProvider

* (feat): implemented api/v2/hashtags/user

* (feat): implemented api/v2/hashtags/suggested

* (feat): api/v2/entities/suggested and moved getSuggestedHashtags to Feeds/Suggested/Repository

* (feat): added flag to user entity for knowing if it has opted in to tags

* (feat): implemented SQL queries and minor refactors to repositories

* (fix): several fixes

* (feat): added 'type' to suggested

* (fix): cleanup

* (feat): spec tests

* (feat): ElasticSearch/Prepared/Update

* (feat): persist tags

* (feat): added cockroachdb provisioner

* (fix): fixed suggested feed query

* (fix): composer version update

* (fix): drone

* (fix): mapping spec tests

* (fix): drone

* (feat): added suggested for blogs

* (feat): run types in parallel

* (feat): trending saves into new suggested table

* (fix): code cleanup

* (feat): cleanup suggested table right before compiling the new one

* (feat): populate entity_hashtags on trending compile

* (fix): retrieve hashtag from url in api/v2/hashtags/user

* (fix): user_hashtag remove query

* (fix) Hashtag/User/Repository (#5)

* (fix): fix repos and ensure sql injection not possible

* (chore): add type to suggested repository to enable better querying

* (fix): hashtags should be strings not arrays

* (fix): opted in hashtags are not displaying first

* (chore): remove categories from settings

* (fix): sort by selected before sorting by score

* (fix): spec tests

* (chore): v2/hashtags/suggested should use Core/Hashtags/Suggested/Repository

* (feat): ability to limit suggested hashtags query

* (fix): drone

* (fix): spec tests

* (fix): type is in the suggested table vs entity_hashtags

* (fix): drone

* (fix): issues with top newsfeed

* (fix): suggested hashtags should be in a time window

* (feat): Trending hashtags from sidebar should stay in newsfeed and show the feed

* (fix): spec tests

* [Sprint/AdminatronONE] (feat) trending hashtags based on new categories (#669)

* (feat) trending hashtags based on new categories

* (chore) change table name to hidden_hashtags

* [Sprint/Zodiac] (feat): suggested cli (#666)

* (feat): new Suggested CLI

* (feat): reset cli/trending as it was before, but with types in parallel

* (fix): drone

* (fix): drone

* (fix): drone

* (fix): Security/ACL spec tests

* (fix): spec tests for Core\Trending\Repository

* (fix): drone

* (fix): drone

* (fix): suggested feeds

* (fix) my hashtags do not show unless they are trending (#673)

* (feat): prefilled hashtags (#679)

* [Sprint/Bojangles] (feat): introduce all in hashtags topbar (#680)

* (feat): introduce #all at hashtags topbar

* (fix): broken spec tests

* (feat): spec tests

* (fix): drone

* (fix): drone

* (fix): drone

* (fix): return user hashtags alongside our own suggested

* (feat): channels can tag themselves

* (fix): remove lastSync time window

* (fix): failing tests

* (fix): suggested endpoint incorrect variable

* (fix): adding tags to channel fix

* (fix): bugs in manager feed for suggested

* (chore): increase limit of test to match Manager