Merging ikerexxe/CustomViews@1061054410568e98cc1e98e1e4ec95654fa235ff.

Closes #3. Thanks for the contribution.

Squashed commit of the following:

commit 0d1d28394f74e50ab2f472d97b9f11b7c25072df
Merge: 0696994 1061054
Author: Andrew Crichton <andrew.g.crichton@gmail.com>
Date:   Mon Feb 25 02:18:16 2013 -0500

    Modifying code to conform with my preferred style. But it is a better example than the one I had put together. Based off of ikerexxe/CustomViews@1061054410568e98cc1e98e1e4ec95654fa235ff .

commit 1061054410568e98cc1e98e1e4ec95654fa235ff
Author: ikerexxe <pedrosalonso@hotmail.com>
Date:   Wed Sep 12 21:37:58 2012 +0200

    Example which allows to draw a signature and and saves it in the sd card
    when the OK button is pressed. It also uses the setBackgroundColor() and
    setSigColor() instead of the direct assignments to change the background
    and the foreground colours.

commit 94bf51adc66c0d4f4de3c19348d130cd364e573b
Author: ikerexxe <pedrosalonso@hotmail.com>
Date:   Wed Sep 12 21:32:12 2012 +0200

    Revert "Example which allows to draw a signature and and saves it in the sd card when the OK button is pressed."

    This reverts commit 284e8143418b08f32c66ba7c398172afbbd037e1.

commit 284e8143418b08f32c66ba7c398172afbbd037e1
Author: ikerexxe <pedrosalonso@hotmail.com>
Date:   Wed Sep 12 12:10:51 2012 +0200

    Example which allows to draw a signature and and saves it in the sd card
    when the OK button is pressed.