Implementations of IUE Reader. Superceeds #14
added astropy's .travis.yml verbatim.
added astropy 0.2rc1 in .travis
uses 0.2.1 astropy explicitly
Merge branch 'master' of https://github.com/astropy/specutils into ioIUE
make sure all keywords of from_array are passed to the __init__

from_array accepted keywords for uncertaity, mask, flags and meta
but did not pass them on the `NDData.__init__`, so that informatmation
was lost. This bug needs to be fixed to make the units tests of #16 pass.
changed astropy install to just pip install astropy
Merge pull request #25 from hamogu/from_arrays

make sure all keywords of from_array are passed to the __init__
Merge pull request #19 from keflavich/travis

Travis Tests
Copied over latest changes from affiliated package template
Ensure that optional dependencies for Sphinx are installed
Ensure that scipy is not required for importing
Merge pull request #27 from astrofrog/update-from-template

Copied over latest changes from affiliated package template
add test for 1 d spec
Merge branch 'master' of https://github.com/astropy/specutils
Merge branch 'master' into ioIRAF

Conflicts:
	specutils/__init__.py