Change evol_type for SN 1a deflagrations

[astroJeff]

For a particular binary we've looked at, a WD accretes >0.15 Msun, causing it to go through a core collapse SN. The bpp array appears to be:

0      8.0     11.0        3.0  0.935356  0.752532   316.535192
0      8.0     15.0        9.0  0.772117  0.750030   317.430244

The problem is that the mass for M2, 0.750030, is reported as mass0, rather than the mass immediately prior to collapse. Instead, there ought to be two steps listed in the bpp array. One where the SN1a occurs, and one where the ktype changes to 15 for star 2, and the mass becomes 0:

0      8.0     11.0        3.0  0.935356  0.752532   316.535192
0      8.0     11.0        9.0  0.772117  0.952532   317.430244
0      8.0     15.0        2.0  0.772117  0.0   317.430244