Fix bugs

1.make setattributes in customView class
2.slider max's defalut value is 100.(fix bug)
3.you can set checkboxSize in CheckBox class
4.you can set thumbSize in Switch class
……
Fix bugs
Refactor the code and fix bugs

add
setchecked
setthumbSize
seticonsize
setrippleBoundsRadius
setrippleSpeed
setValue
setText
setTextColor
setIcon
setIconDrawable
Fix bugs
Merge pull request #55 from shark0017/master

Refactor the code and fix some bugs