fix the selected option in mobile nav
Added travis.yml so travis doesn't fail for every master branch PR and push
Added travis stamp of approval to README.
fixed issue #949 using @alexkirmse's patch
merging from floydpink/master

Signed-off-by: Floyd Pink <imbleedingme@googlemail.com>
bring in the change for categories canonical url

Signed-off-by: Floyd Pink <imbleedingme@googlemail.com>