Removed unnecessary comment.
Changed compiler flags for QCTC/KTrax.F

The problem really is the -ftree-vectorize option for gcc. KTrax.F manages to
break gcc when this option is used. Instead of forcing a certain set of FFLAGS
we should rather simply remove -ftree-vectorize.
Added documentation.
Fix tests.

If we didn't compile with MPI then testing MPI is pointless.
Only build source package.
Changed target distro for ubuntu.
Added more distributions to debian package.
Changed to correct section.
Added priority to debian/control.
Added missing gfortran dependency.
Made including the git commit tag a configure option.

Releasing to Ubuntu becomes really difficult if the git tag is included in the
dist. Minor updates can not be pushed because the different git tags in the
dist throw ubunutu's ppa server off.
Version bump to 1.0.4.
Bumped Ubuntu package version.