gui/epgview: replace left/right chars with corresponding icons
driver/simple_display: std::string initializes itself
gui/audioplayer: don't call paintLCD() in every loop iteration
Revert "gui/audioplayer: don't call paintLCD() in every loop iteration"

This reverts commit 64986c4ed7201843a6108573a74776519f2a42f4.
gui/audioplayer: don't call paintLCD() in every loop iteration
eitd/sectionsd: revert accidently inserted tab
Merge remote-tracking branch 'martiis-neutrino-mp/master'