check sphinx build

[kelle]

In order to get the package setup, I had to delete the setup.py file in #99. That means that I got rid of a bunch of sphinx config stuff. Pasting here cause it probably needs to go somewhere else.

# allows you to build sphinx docs from the package
# main directory with "python setup.py build_sphinx"

try:
    from sphinx.cmd.build import build_main
    from sphinx.setup_command import BuildDoc

    class BuildSphinx(BuildDoc):
        """Build Sphinx documentation after compiling C source files"""

        description = 'Build Sphinx documentation'

        def initialize_options(self):
            BuildDoc.initialize_options(self)

        def finalize_options(self):
            BuildDoc.finalize_options(self)

        def run(self):
            build_cmd = self.reinitialize_command('build_ext')
            build_cmd.inplace = 1
            self.run_command('build_ext')
            build_main(['-b', 'html', './docs', './docs/_build/html'])

except ImportError:
    class BuildSphinx(Command):
        user_options = []

        def initialize_options(self):
            pass

        def finalize_options(self):
            pass

        def run(self):
            print('!\n! Sphinx is not installed!\n!', file=sys.stderr)
            exit(1)

DOCS_REQUIRE = [
    'nbsphinx',
    'sphinx',
    'sphinx-automodapi',
    'sphinx-rtd-theme',
    'stsci-rtd-theme',
    'extension-helpers',
]