Added plugin support. Core plugins implemented are Device and NetworkConnection.

commit a2fca6e655180aecffb0ee3a02dc1784c8f521d8
Author: Shazron Abdullah <shazron@apache.org>
Date:   Wed Mar 6 17:13:40 2013 -0800

    Got NetworkConnection and Device plugins working.

commit e1c8592308119faf86d7465ea6a9fe7dede93f06
Author: Shazron Abdullah <shazron@apache.org>
Date:   Wed Mar 6 13:39:06 2013 -0800

    Re-arranged group and folder structure to make it easy for plugman support.

commit 1db66f1d7b46b0c49344eeee56f47cdb1fc58c85
Author: Shazron Abdullah <shazron@apache.org>
Date:   Wed Mar 6 11:44:57 2013 -0800

    Removed Sound and Notification bindings.

commit aa6c0bf4ddf64e3c2d573aab88731b8703b243d3
Author: Shazron Abdullah <shazron@apache.org>
Date:   Wed Mar 6 11:39:30 2013 -0800

    Namespaced CDVBridge JavaScript functions.

commit 142d25463670bc8261fe9f945c5d78ac774580c2
Author: Shazron Abdullah <shazron@apache.org>
Date:   Wed Mar 6 11:39:10 2013 -0800

    Housecleaning project structure.

commit b3bdeb8d3e67c088f04d115c3785dd38b658483d
Author: Shazron Abdullah <shazron@apache.org>
Date:   Wed Mar 6 11:23:54 2013 -0800

    Added classes from iOS (to refactor), ARC enabled the code.