Make BCSR file format a run-time option.

I added an optional argument to Put_BCSR() and Get_BCSR() to indicate which
file format to use. The default is the standalone format.
Add BCSR file format converter.
Version bump to v1.0.9
Fix compatability with old style BCSR format.
standaloneBCSR: Convert both the Fockian and the density.
Make convertBCSR tool more flexible.

The method for spectral bounds estimation is now configurable from the command
line. Currently implemented options are Gershgorin (method 0), and a full
eigensolve (method 1).
Merge branch 'master' of ssh://freeon.lanl.gov/home/git/freeon
configure.ac cleanup.
Merge branch 'master' of freeon.lanl.gov:/home/git/freeon
Also convert F_DIIS, if it exists.
Add matlab format to convertBCSR.
Add python shebang.