Fix issue autodiff#24 - non-square jacobian error (autodiff#25)

Fix issue autodiff#24 - non-square jacobian error (autodiff#25)

Update version to 0.4.0

Travis using cache (autodiff#8)

* Update conda install script for travis

* Use bash scripts to simplify .travis

* Update .travis.yml

* Update .travis

* Update install.sh

* Update install.sh

* Update install.sh

* Add install prefix

* Fix path to tests executable

* Update .travis.yml

* Update .travis.yml

Travis using cache (autodiff#8)

* Update conda install script for travis

* Use bash scripts to simplify .travis

* Update .travis.yml

* Update .travis

* Update install.sh

* Update install.sh

* Update install.sh

* Add install prefix

* Fix path to tests executable

* Update .travis.yml

* Update .travis.yml

Travis using cache (autodiff#8)

* Update conda install script for travis

* Use bash scripts to simplify .travis

* Update .travis.yml

* Update .travis

* Update install.sh

* Update install.sh

* Update install.sh

* Add install prefix

* Fix path to tests executable

* Update .travis.yml

* Update .travis.yml