* FEATURE: introduces minimum trust level for polls
This commit makes `poll_enabled` less misleading and introduces `poll_minimum_trust_level_to_create`. If poll are enabled they will always be cooked, and if you have the required trust level you can create polls. As a side effect, it also fixes a bug where rebaking a post created by staff member when `poll_enabled=false` would end up not cooking it.
It also adds more tests to ensure settings are respected.
* admins should be whitelisted
* checks for admin in post validation
* test for >= instead of == trust level
* Fix infinite loop when poll step is zero
* Add test for step minimum and for breaking test
* Remove trailing spaces (eslint)
* Remove extra space (eslint)
* Removed test call .twice
* composer restyle, some input normalization
* style adjustments: spacing, preview background, colors
* small spacing adjustments, removing default iOS input appearance, fixing merge
* small width adjustment
* fixing mobile link modal for small devices
* FIX: more resilient allowInitiatlValueMutation implementation
* Build scrollMap only on scroll.
* FIX: pick date and time was not reseting state
* FIX: removes auto sizing and touchstart support for now
* Revert "FIX: reflects discourse icons naming scheme s/d-icon-*/d-*"
This reverts commit b5ed980235.
* tweak icon-library generation
* FIX: regression preventing to set number of hours before closing
This commit also adds a full test suite for editing topic timer.
* FIX: makes allowInitialValueMutation more restrictive
* FIX: invite-list expects initial value mutation
* fixing tag input spacing
* minor input cleanup
* bump onebox version
* FIX: avoids test failing at some times of the day
* FIX: various issues when editing category permissions
This commit also adds multiple tests
* renames `select-box-kit` into `select-kit`
* introduces `single-select` and `multi-select` as base components
* introduces {{search-advanced-category-chooser}} as a better component for selecting category in advanced search
* improves events handling in select-kit
* recreates color selection inputs using {{multi-select}} and a custom {{selected-color}} component
* replaces category-selector by a component using select-kit and based on multi-select
* improves positioning of wrapper
* removes the need for offscreen, and instead use `select-kit-header` as a base focus point for all select-kit based components
* introduces a formal plugin api for select-kit based components
* introduces a formal pattern for loading and updating select-kit based components:
```
computeValue()
computeContent()
mutateValue()
```
