test travis-ci support for installing bedtools
add sphinx to travis-ci
import parallel_apply for doctest
add .install-tabix.sh; echo $PATH
more travis-ci changes
set paths in travis-ci wrapper script
chmod
add install .;
different install technique
install samtools for travis-ci
travis-ci test tweaks
relax tolerance for image comparison
"make clean" on docs before doctesting
docs
add travis-ci image to readme