Use wcsaxes for examples instead of pywcsgrid2
Fix sphinx docs build
Add back fixed demo_region03
Formatting
Fix demos
Merge pull request #1 from astrofrog/issue-49-fix

Fix example 3
Add back demo_region03 to docs
Merge pull request #49 from cdeil/issue-49

Change plotting examples from pywcsgrid2 to wcsaxes