multiple userID support, some bugs are fixed
Re-architecturing of cloud-service, data-modelling and
aikuma-utility-functions
Re-architecture of cloud-download/sync-service, support for multiple types of files, improved robustness, efficiency, code-refactoring
archive-button is changed to one with aikuma image
addSpeaker during recording-creation now allows the removal and
re-addition of speakers after it is added
only one player can be enabled
Merge pull request #350 from lisaslyis/search-interface

This pull-request resolves #279, #340, #352 and is related to #243, #283, #315, #320, #344,