Initial design for slice operations on WCS
Adding new features for indexer
Completing initial indexer class, and adding test cases
Adding documentation
Transfering indexer to spectrum1d class
Finalizing indexer test cases, and completing the slice_index method in spectrum1d
Correcting documentation
improving readability of code
Removing import deprecated
Fixing indexer class to follow new model framework
Dummy commit to restart travis
Adding setup_package file
Merge pull request #91 from shaileshahuja/slice-support

Initial design for slice operations on WCS