Added WIDX_PICKUP.
Added window_staff_peep_close and window_staff_peep_mouse_up.
Added window_staff_set_page.
Added window_staff_peep_page_events for all tabs.
Moved window_create into window_open and renamed sub_6BED21 to window_staff_peep_disable_widgets to follow the same pattern as window_peep.
Added missing addresses.
Added rename code for guests and staff.
Added code for Pickup for guests and staff.
Merge pull request #352 from hexdec/window_staff_peep_functions

Window staff peep functions
Set CMAKE_FIND_ROOT_PATH, use i686-w64-mingw32

The project now uses the MinGW headers instead of wine's headers.
install.sh: Download mingw from sourceforge.

It will automatically extract to /usr/local/
Extract with root privileges
Extract to subdirectory...
mkdir if it isn't present
Set the correct permissions after extracting.
Clean the code up (indentation)