* include/Device.h,
src/Device.cc: Removed bool Get_Any_Busy() in favor of public bool busy which is set in gparted_core.
This also fixed a small bug with incorrect mountdetection of logical partitions.
Also added a Reset() function to properly reset the contents of a device. to zero/empty .
* include/GParted_Core.h,
src/GParted_Core.cc: 'busyness' of a device is now determined in get_devices().
Renamed get_partitions() to set_device_partitions to reflect its proper function.
When a new partition is created to contain a copied filesystem the size is now properly set. This fixes
a very annoying bug which no one knew about except for me =) .
* src/Win_GParted.cc: use boolean busy from device instead of Get_Any_Busy() .