Check whether userId is contained in content, whether rooms is a json array, and add more test case.

content of event does not indicate itself whether it is encrypted or contains a thumbnail. FileHandler.qml handled this case, it accepts eventContent instead of mxcUri(And mxcUri should not be set manually).

Improving code of openLink(), and fixed tests.

Add comments of param for Client::addDirectRoom()

Fixed tests for pipeline

Use Client::accountData() instead of MatrixSdk::directRoomMap() in MatrixSdk::directRoomIds().

Reusing the content json of the original account data event instead of directRoomMap()

Add tests

Add tests

Tests has not been written yet.

Tests has not been written yet.

Add addDirectRoom() function

Improvement comments

Add MatrixSdk::checkSpecVersionRange() and tests

Improved naming, MatrixSdk::supportSpecVersion()

Fixed qt quick tests

Fixed tests.

Fixed CI

Rebase to servant

Declare mxcUriToHttpV1 in header and define in source

Fixed copyright

Add tests

Fixed tests

Use contextualActions

Add function to detect whether the server supports the specified version

Make const variables static global

Parse query for matrix scheme, and add tests.

Don't use a separate constructor for unit test

Use a separate constructor for unit test

Fixed for review