Modified 'self.vectors()' to place the proton and heteronucleus name in 'self.relax.data.res[run]'.
Previously the names were being placed into 'self.relax.data.pdb[run]' which is problematic for
task #3838 (https://gna.org/task/?3838). This is also preventing the resolution of bug #7544
(https://gna.org/bugs/?7544).
