minor updates to some scripts.

correct_add_temp.py
lstbin.py
pspec_pk_k3pk_boot.py
pspec_plot_pk_k3pk.py
Merge branch 'master' of github.com:dannyjacobs/capo

merge danny capo with zaki capo
Merge branch 'master' of github.com:dannyjacobs/capo into zaki
Merge branch 'master' of github.com:dannyjacobs/capo into zaki
Merge branch 'master' of github.com:dannyjacobs/capo into zaki
add cov and pspec