Adding ability to recognize some UTF8 symbols on the keyboard.

Change-Id: I3e0982c123714c248bea7816907ecbebdccaa0d1
Signed-off-by: Eduardo Lima (Etrunko) <eduardo.lima@intel.com>
Replace default theme font with SourceSansPro

DroidSans has missing glyphs that are used in the keyboard and has not
been updated for quite some time. It is being replaced in favor of
SourceSansPro, another open source font which provides all glyphs we
currently use.

The font is developed openly in github:
  - https://github.com/adobe-fonts/source-sans-proand

And distributed under the Open Font License:
  - http://www.adobe.com/type/browser/legal/pdfs/OpenFontLicense.pdf

Change-Id: I6e3cab82198ba860fe209d81982576b9bc0ecb8d
Signed-off-by: Eduardo Lima (Etrunko) <eduardo.lima@intel.com>
Release 0.0.3

Change-Id: I0e81fb8e55a928c448870a36a52b5bfb892a4252
Signed-off-by: Eduardo Lima (Etrunko) <eduardo.lima@intel.com>