It seems concurrent calls to invokeMethod using qml component
object pointers can lead to access violations. These method
invocations can be replaced with a signal/slot mechanism.
This patch replaces only the invocations in conversationsadapter
and accountsadapter that are known to be problematic for now.
Some code cleanup is done for QmlAdapterBase derived classes.
Gitlab: #61
Change-Id: I72f47c9229a9bf42299ae52822c3a1a8c04eb423
In order to make it work with the translations, call status is no longer passed as a string but as an integer (from enum lrc::api::call::Status).
Gitlab: #10
Change-Id: If8d8b7093fbf82e9b7732e6991eec647ad0d50b7
