Add audio stream from server

Change-Id: Ifd4edc24084a6e87e19c0f02a8667982424a7841
Added "sync by date" procedure
Update tab bar text and update beacon bug

Change-Id: Ie8afcb020ab2fd26f4096271c31b4d7867d6f753
Updated languageButtons design

Change-Id: I78c2a21d04f0ec547a40d666628cabf945090004
Changed mbprogresshud place & deleted backgroundColor

Change-Id: I99321da22cc3d3563323935d6384742e54814514
Add dynamically resizable width to language buttons
Update suggested beacon exhibitions
Fix progress hud bug for high cpu usage
Update DB content, check for updates in the background

Change-Id: Id5498216b133d2f86b4d0c460ded88c7548b60f7
Language view button fix
Reorganize JSON and update synchronization