GF-Moonstone-cssCleanUp-brookepeterson: remove redundant moonstone-text ...

...rules, remove text-style letter-spacing to .moon class and remove them from all text classes, change line-height to multiple instead of em, add charset=utf8 to all sample files Enyo-DCO-1.1-Signed-off-by: Brooke Peterson <brooke.peterson@lge.com>