Moved start() inside init and Code refactoring to conform to PEP8 naming and styling standards.
tests: Minor fix in imports
Moving stepper motor module to BinPy Desk
linker: Included an indexer to uniquely index and maitain records of all elements
linker: manage duplicates automatically
ignore -swp ending  files
Added Linker class to set and remove edges of a digraph ( links ) ; connectors are now indexed via BinPyIndexer
linker renamed to AutoUpdater; Basic structure is complete; Thread sync is pending
Make networkx a dependency
Minor fix in Bus.__init__
Bug fix in connector.py; Removed irrelevant __get__ method
Fixed __hash__ requirement in Bus
connector: PEP8 and Error Specification in destructor
Updated travis.yml for pip3
Bus Support Added
travis pip3 - 2nd fix
Minor fix in linker due to overloaded __eq__ function in Bus class
Included id to hash computation function to ensure unique hashing
PEP8
Exclude build directory from pep8 checking