TemporaryBufferDevice, handle writing empty data to empty buffer
TemporaryBufferDevice, fixed #include in implementation file
TemporaryBufferDevice: Added forgotten NURIA_CORE_EXPORT macro
Adding ReferenceDevice, a QIODevice working on a part of another device
Introducing Session Managment

Provides a simple mechanism for creating and accessing named
key-value-stores, e.g. for session data.

Signed-off-by: Alexander Siol <dunklermeuchler@gmail.com>
Fixes and API changes in [Abstract]SessionManager, Session

Signed-off-by: Alexander Siol <dunklermeuchler@gmail.com>
Changed SessionManagers backend to QCache, misc. fixes.

Signed-off-by: Alexander Siol <dunklermeuchler@gmail.com>
Updates documentation for Session Managment