fix in obstools for incorrect NUV cardelli extinction, as pointed out by @nhmc  (got the 3.3 to 5.9 and 5.9 to 8 1/lamb ranges flipped) - closes #17
added import that was missing in ellipse-fitting
Fix bracketing which caused multiple day offsets for transit time.
Note unit test requirements in readme.

Also tweak rst formatting slightly.
Minor riseSetTransit bugfixes for circumpolar, never visible sources.
Fix minor bug in site localtime calcs (was causing date errors for rst).
Add extensive riseSetTransit unit tests.
Add 'nextRiseSetTransit' functionality to obs site.
Add `on-sky` wrapper about nextRiseSetTransit.
Merge pull request #20 from timstaley/on-sky

On sky
updated to remove Sun/Moon references in obstools
fixed broken getHmsStr
spelling correction for sebastian
fixed intersphinx for pymc
fix typo in version-checking
Fix indentation issues
doc fixes
Add note about Astropy
bump version to 1.0.0 not dev
back to dev