version v0.2.3

rename content_type to content-type

bump version

set version

chore: add requirements.txt to manifest (#14)

fix: layer ordering for landlab component (#13)

* reverse ordering of layers in landlab component

* update readme install instructions

* write header information to output file

fix: compact layers without sediment (#12)

* reduce layer thickness to zero if no sediment

* change default max porosity to 0.5

* update readme

* remove extra lines

chore: include license file with package (#8)

* set tag_prefix for versioneer

* include LICENSE file with package

* remove lint

test: add Windows builds to CI

* use build stages; deploy to pypi

* add encrypted password for pypi

* upload only sdist

* add AppVeyor config file for Windows CI

* add badge for AppVeyor builds

* remove compiler command when installing with pip

* add return_dz keyword to compact function

* remove repeated test_cli test; test return_dz keyword