create convenient class for text-to-speech
merge with upstream
Merge pull request #18 from TETRA2000/master

replaced with test video url
fix text-to-speed
merge with upstream
Merge pull request #19 from eneim/nam_mobile_ui

Nam mobile ui
add animation for heart
merge
Merge pull request #20 from eneim/nam_mobile_ui

Nam mobile ui
minor fix
merge
Merge pull request #22 from eneim/nam_mobile_ui

Nam mobile ui
fix threading bug