Cm 10.1

Hi,

You have recently added the lge iproj familly to the supported devices (p930, su640, vs920) and as you might know, those devices have hardware buttons for the home shortcuts and what not, so i thought it would be helpful to create a pa_iproj.conf and preferences overlays for the iproj familly so that the user does not have to manually put the nav bar down to zero DPI. 

I actually maintain builds for both p930 and su640 devices for about a month and a half now, personnaly i edited the existing pa_xhdpi to put the nav bar to 0 dpi, but now that it is offically supported, i thought it would be good to actually the overlay settings for it.

Hope i was of any help, if i made a mistake somewhere, please tell me and i'll make the necessary adjustement (this is my first pull request).

just1nsama