Testing Jdom

Download jdom (jdom.org) binary and extract to assets/Jdom
Started working on DB

Init, exit and readCategories started.
Database nearly finished, started on languages
removed unnecessary file
Config and Language handling implemented
Documented LanguageRepository
Added comments to Config
centerPanel:
- Changed JTabbedPane to 2 separate JPanels with icons on the left and TaskPanel on the right
- Arranged layout for the centerPanel
- Introduced class TaskPanel
Changed gitignore and some minor stuff
Adding JDOM XML DB
Updated Database to work with model changes
Merge branch 'Vera'

Conflicts:
	Assets/readme.txt
	Code/assets/images/add_new.gif
	Code/assets/images/all_categories.gif
	Code/assets/images/house.gif
	Code/assets/images/school.gif
	Code/assets/images/work.gif
	Code/src/TimeManager/TimeManagerController.java
	Code/src/TimeManager/TimeManagerMain.java
	Code/src/TimeManager/TimeManagerModel.java
	Code/src/TimeManager/TimeManagerView.java
bb
Merge branch 'Aries'

Conflicts:
	Code/src/TimeManager/TaskCategory.java
Added creation and init of DB to Model
Fixed DB problems
Controller is now an Observer, View is not an Observer anymore.
Fix issues with populating initial data from the xml file
Model's and View's constructor don't have a reference to controller anymore

DB XML file:
- added all_categories and add_new as additional categories
- added more dummy data to the xml
Sercan's custom component
Merged Sercan's custom component to the application
including language