* arts-2-1-636

* src/groups.cc: Add ArrayOfLineMixingRecord.

* src/m_linemixing.cc, src/methods.cc:

Split the reading of line mixing data from the matching process.

See builtin docs of ArrayOfLineMixingRecordReadAscii and
line_mixing_dataMatch.

* src/m_abs.cc (abs_lines_per_speciesCreateFromLines): Cosmetics.

git-svn-id: https://www.sat.ltu.se/svn/rt/arts/trunk@8417 aaf1aab0-4228-0410-ad68-8dceda47f409
Arts-2-1-637
* src/lineshapes.cc: Confirmation on which order Faddeeva's frequency grid
should be arranged. It is the opposite of how Jefferies etal wrote it down.
Changed the function Accordingly

* src/m_zeeman.cc: Made this compatible with line-mixing. Differences of 1 K
in the Bern test simulations followed.

* src/absorption.cc: Better comments now.



git-svn-id: https://www.sat.ltu.se/svn/rt/arts/trunk@8418 aaf1aab0-4228-0410-ad68-8dceda47f409
* arts-2-1-638

* controlfiles/artscomponents/arts-xml-data/TestSurf_Mars.arts:

Include planet_mars.arts instead of planet_venus.arts.

git-svn-id: https://www.sat.ltu.se/svn/rt/arts/trunk@8419 aaf1aab0-4228-0410-ad68-8dceda47f409
2013-05-13  Patrick Eriksson  <patrick.eriksson@chalmers.se>

            * arts-2-1-639

            * src/m_physics.cc (complex_nWaterLiebe93): Updated comment.
            Changed 146.4 to 146, to be consistent with paper, and
            eps_water_liebe93 in atmlab.



git-svn-id: https://www.sat.ltu.se/svn/rt/arts/trunk@8422 aaf1aab0-4228-0410-ad68-8dceda47f409