preferences: add ads detection configuration
misc: update headers
player: fix infinite loop on short songs
player: add ads detection and silence support
misc: migrate to Apache Pivot 2.0.3
ui: refactor and update visual
ui: fix paint loop causing high cpu load
player: keep audio device open
misc: remove pivot-web dependency
logging: move from logback to log4j2
player: fix silence state not reinitialized after an ad
status: fix NPE on configuration migration
player: stop threads when idle
status: replace expiration thread by a scheduler
player: replace SyncUI thread by a scheduler
misc: update README
configuration: fix version override in dev environment
misc: update README
core: fix initial pandora request exception handling
status: improve message expiration mechanism