[Doc] Put new Python module docs before legacy docs

git-svn-id: https://cantera.googlecode.com/svn/cantera/trunk@2478 02a645c2-efd0-11dd-984d-ab748d24aa7e
[Doc] Start section for FAQs

git-svn-id: https://cantera.googlecode.com/svn/cantera/trunk@2479 02a645c2-efd0-11dd-984d-ab748d24aa7e
[1D] Fix save/restore when mechanism size differs

The failures were caused when attempting to restore the tolerance vectors, which
have a value for each species. Since these tolerances are usually the same for
all species, the last value in the array can be used to extend the array to the
required length.

Also add some tests for this feature.

git-svn-id: https://cantera.googlecode.com/svn/cantera/trunk@2480 02a645c2-efd0-11dd-984d-ab748d24aa7e