Fix bug in sigma_clip so it does it for each pixel
Added min_value and tests for flat task
Temporary change to .travis.yml
Merge pull request #84 from mwcraig/travis-patch

Temporary change to .travis.yml
Merge pull request #82 from crawfordsm/sigma_clip_stack_bug

Fix bug in sigma_clip so it does it for each pixel
Back to regular travis configuration
Merge pull request #83 from astropy/fix_flat

Fix flat
Merge pull request #86 from mwcraig/travis-de-patch

Merging without travis build because other PRs in ccdproc have effectively already tested this
Fix docstrings as suggested by @cdeil
Add __all__ to modules
Fix astropy inter sphinx link for building docs with 0.3.1

Closes #45 but can be removed once astropy 0.4 is released
Fix intersphinx links
Update astropy intersphinx to those used in 0.4
First attempt at documentation landing page
Add documentation stubs and draft of ccddata
Wrap paragraphs
Add combiner API to index
Document Combiner clipping
Draft image combination docs
Attempt at a travis workaround

until astropy helpers is fixed...