All tabs changes :
	Increased the height of the rows.
	Grayed out the non-editable columns.
Common changes :
	- Increased the rows height.
	- Grayed out the non-editable columns(ID columns, name column from the
management tab).
	- Name column accepts String.
	
Dev side :
	- Lower Bound, Upper Bound, Argument 1, Argument 2 columns only accepts
Integer
	- Dependency column only accepts String.
	
Management side :
	- Now disables the add and remove buttons when on management tab.
	- Now 3 rows are initialized on launch. (Conception, Tests, Gestion).
	- Double column is now the only editable column, it only accepts
Double.(uses 0.75 instead of 0,75)
Merge branch 'Version-2' of https://github.com/TER-2013-2014-estimation-prj/TER.git into Version-2