Added a module to parse logical equations and convert it to BinPy compatible Gate level functional statements
Converted the implementation of connections from list to dict
Added PowerSource() and Ground() classes with documentation.
Added an example of using PowerSource() and Ground()
Added tests for PowerSource and Ground
Corrected a few bugs
Fixed a typo
constructor corrected
adds ICs 4000, 4001, 4002, 4011, 4012, 4023, 4025, 4068, 4069, 4070, 4071, 4072, 4073, 4075, 4077, 4078, 4081 and 4082
adds tests for 4000, 4001, 4002, 4011, 4012, 4023, 4025, 4068, 4069, 4070, 4071, 4072, 4073, 4075, 4077, 4078, 4081, 4082
adds example files for 4000 series ICs
adds series_4000_test.py to .travis.yml
edits README.md to add series 4000 ICs
Merge branch 'develop' of https://github.com/BinPy/BinPy into sources
edits description of series_4000 ICs
delets tests for 4081 and 4082
Merge pull request #112 from gargshashank5/series4000

Series4000
Merge pull request #110 from rajat974/chg_gates

constructor in gates.py corrected
Merge pull request #111 from SSR09/algos

Implemented functionality of obtaining boolean function & its 'implementable version' from minterms
Merge pull request #100 from rvraghav93/develop

Added a module to parse logical equations