ENH : Draft of RCParmamDict

 This is a class for keeping track of default values.  It is a recursive
dictionary so we get some notion of namespaces.
Merge pull request #3 from tacaswell/rc_params

ENH : Draft of RCParmamDict
DEV : configure travis
Merge pull request #12 from tacaswell/travis_config

Travis config
MNT: Added default value handling for the 'nx' parameter in 'bin_1D'
MNT: Added test for default value handling of bin_1d
BUG: Fixed bug in bin_1d testing method
DOC: Updated docstring on RCParamDict to be more verbose
Merge pull request #15 from ericdill/rcparams_doc

DOC: Updated docstring on RCParamDict to be more verbose
Merge pull request #14 from ericdill/bin_1D

Added default value handling in bin_1d and a corresponding test
MNT: Added __init__.py file to the nsls2.io package and fixed setup.py to
include the nsls2.io package
DOC : stub for wedge integration (caking)