nGhost Media Center Code

removed some redundant code: inline int do_action(...);

fixed default dbpath

-initial support for resolutions changing per screen (untested)
-fixed bug in video box tag parsing strw->strh

initial upload of some stuff
fixed bugs in nwifi.py

fixed lowercase bug in refresh="" parsing
fixed some errors in parsing db_files
added support for variables in the refresh action tag
fixed variable support for db_files

initial upload of the nwifi extension

see --help (ive learnt alot about bash modifying this)

added random_image to sidebar display

-implemented command skin item types with refresh options
-added a couple more actions to the nghost internal command list:
listbox_refresh and toggle_fullscreen.

added db_file to skinning engine
added action::refresh to skinning engine
created proper populate_from_file() function to load dbs from files