Improvement: Adding an absolute value to avoid a negative value (possible with steady state initialisation)

HTML descriptions updated

Adding a HTML description

	+ change x node var type ; to enable to be in block 2 .mat (for ModelicaScripting)
	+ use of add on for conductivity within wall (help for Persalys studies)

Addition of the possibility to add virtual inertia in the carrollNode to speed-up the numerical solving

- Removal of the option for implicit connections
- Correction of wrong statement when redeclaring a class (replaceable instead of redeclare)

- Removal of the option for implicit connections
- Remplacement of wrong statement when redeclaring a class (replaceable instead of redeclare)

Dymola compatibility: Displacement of statement regarding centralSecondOrder.CoeffTimeDer parameter in the equation section to the inside of parenthesis in the class declaration statement

Addition of calculation sheets to compute the data for the wood burner and pressure coocker examples

Correction of the wrong surface given to the bodyRadiation. Convective surface was used rather than radiative

Removal of  tests of the classes in the TAeZoSysPro library and moving the tests to the TAeZoSysPro_testsuite

Addition of the vector x_node that corresponds to the position where the quantity diffused 'u' is computed

Modification since the open modelica compiler of version 1.14 does not handle correctly the "end" keyword

Correction of errors from sources of relation + addition of a description + addition of the variable Cr_small to define the threshold a too low value for Cr