Reordering the intra H migration tree

Cs_H_out_H/(NonDeC/Cs/Cs) was not a child Cs_H_out_H/2NonDeC
Changes that allow birads to form a double bond if adjacent and calculate thermo accordingly.
Added additional forbidden groups to ketoenol family.
Fix tree levels in R_Addition_MultipleBond family.
Added reaction to JP10BetaScission library.
Revert commit 9ddfe6.  It leads to too many errors.
Correcting thermo when more than one resonance structure is present
Flagged out the code for birad to double bond, might come in handy for some other purpose, otherwise somebody would never have put it there.
New reaction family to go from trienes to cyclohexadienes. (reverse Diels Alder)
Updated tree for int H migration. Shamel check 1045 and 1052!
If QM fails just generate fake theenthalpy of formation = 1000 kcal/mol.
We are OK with this as the species are forced in the edge.
Updated family.txt to allow Intra_Diels_alder2