setColor() and getColor() fix

fixed the getColor() bug that return 0 when the wheel hasn't turned yet.
fixed the setColor() bug that doens't set the CenterColor of the
colorpicker.
Readme Update

Dependency support
Adding orientation attribute to Bar objects. This attribute can be used to layout the bar either horizontally (default) or vertically.
Merge pull request #28 from tonyr59h/Vertical_Orientation

Adding orientation attribute to Bar objects. This attribute can be used ...
Update to 1.2
gitignore update
gitignore update 2
Remove files that are in .gitignore
remove .gradle folder
Readme Update
Added possibility to hide the old color in center
Merge pull request #34 from mwaclawek/master

Added possibility to hide the old color in center
OnColorChangedListener Fix

fix
OpacityBar color fix
Readme update
Version code update
Fix for jumpiness when movement starts
Added OnOpacityChangedListner to OpacityBar.
Renamed listener's paramter to opacity.
Added onColorSelectedListener (wheel released)