Fix indentation in cobbler/, recognize multiple kernels

[Jeroen van Meeuwen]

From: Jeroen van Meeuwen (Fedora Unity) <kanarip(a)fedoraunity.org&gt;

A huge patch (0001) to fix the indentation for all files in cobbler/.

It seemed sometimes 2, 3 or 4 spaces to a tab was used, and editing these
files wasn't becoming any easier. This patch was comprised with a:

$ sed -i -r -e 's/[ ]{4}/\t/g' `find cobbler/ -type f`
$ sed -i -r -e 's/[ ]{3}/\t/g' `find cobbler/ -type f`
$ sed -i -r -e 's/\t/    /g' `find cobbler/ -type f`

making the indentation "4 spaces to a tab".

Another patch (0002) attempts to fix a FIXME wrt. multiple kernels being
available in cobbler.Importer.distro_adder() and cobbler.Importer.add_entry()