* Change the implementation of GetAll() in `preference_store.go` to return an
object from `model` and a *model.AppError.
Change the Interface in `store.go` to accomodate for the change
Change the test that called the GetAll() function
* Rename the result variable to preferences so it makes more sense.
Use assertions to keep the test consistent
* Generate the correct mocks after the code changes
* Remove redundant conditions
* Address govet errors
* Resolve conflicts with master's new changes
* Fix Save() function according to the new changes in master (Got
overwritten with the previous commit)
* Change the assertions to have the same format as commit 2d97f01
* migrating get posts to sync by default
* flow control and style changes
* style changes, error checking
* pulling master down
* counting missed cache, not hit
* fixing bad conflict resolution
* forcing rebuild
* MM-15354: Migrate Channel.Save() to sync by default
* MM-15354: fix unchanged Channel().Save() methods
* fix typo
* fix nil reference bug and update tests for channels
* fix err shadowing bug
* MM-15354 fix support for sync version of Save
* response format changes
* Generated mocks
Fixed all references of Preferences.Save
* Remove old code from store.go (incorrect merge)
* Review change - Add validations on count and error
* Review change - return from root level
* Review change - return 0 as nil value for int
* fix initialisation of err in preference_store
* MM-15422: Adds new parameters for retrieving pages of channels and searching channels.
* MM-15422: Appends excluded channel names with defaults. Adds separate struct for data-tier option parameter.
* GH-10761: Migrate Post.Get to sync by default
* instantiate storeChannel with make
* fix go vet issue
* fix go vet issue
* use select for checking channel for value
* fix go vet shadow variable issue
* addressing review comments
* call post.Get() in goroutine
* refactor minor values to fix tests
* fix: remove err error type, it should be *model.AppErr
* Migrate Overwrite and GetMaxPostSize() in PostStore to sync by default
* GH-10762: fix return type for mock func
* GH-10762: fix tests for MaxPostSize() mocks
* fix imports
* MM-15162: Changes for LDAP groups removals phase.
* MM-14897: Changes to be able to add and remove groups from channels.
* Update model/client4.go
* MM-14897: PR-requested change to string interpolation.
* modify Get method in preference_store
* modify interface to match changes on preference store Get method
* modify variable initialization
* fix behavior on GetPreferenceByCategoryAndNameForUser
