Comments

added "Karst" in item-class-head
Room.java-----------------------------------------

-added parameter in instancing of object Item
-outcommented the instancing of item-object

Item.java-----------------------------------------

-added comments in class - head   and in general

modified constructor:
-added range-check for values of x and y - variables
-added parameter "id"
-changed Bitmap bitmap -----> String itemStandBitmapName

added attributes:
  -active_state (int)
  -id (int)
  -holdAnimationCycles (int)
  -itemAnim (List<String>)
  -itemAnimInv (List<String>)

 modified attribute: Bitmap bitmapO ---> String itemStandBitmapName

 added methods:
 -getID
 -useBySubject
 -useByUser
 -tick
- addResource
ITEM-----------------------------------------

-modified comments in general

modified constructor:
-changed String itemStandBitmapName -----> String graphicsname
-transforming from string into resource id

added member variables:
  -enum for activestate
  -default_graphics_id
  -akt_graphics_id
  - List<Integer> itemAnimbySubject for
  - List<Integer> itemAnimbyUser

 added methods:

 -resNameToResID
 -getAktGraphics
-addGraphicsforUsertUse
-addGraphicsforSubjectUse
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/com/example/Demo_Subj/Item.java