Fix 'app:spb_color=#fff' color setting with SmoothProgressBar

Signed-off-by: Lucio Maciel <luciofm@gmail.com>
Merge pull request #4 from luciofm/master

Fix 'app:spb_color=#fff' color setting with SmoothProgressBar
Merge branch 'dev'
Fixed decelerate issue
Added Maven push
Lib pushed on maven central. Updated readme to add integration part. Closes #2
Added gnow and gplus styles to the sample
Merge branch 'dev'
Incremented version code/name