- Fixed few typos
- Adjusted TFlipFlop class to be a subclass from JKFlipFlop class
Create series_7400_tests.py

Added tests for the 50 ICs of 7400 series .
Corrected a bug for IC 7445 and a few typos.
added file name of series7400 testfile..
fixed another typo
Wrong usage of 'cos' instead of 'c'
Added a Exception and two more cases

For Ohmslaw_AC() :
- the case when 'p' and 'c' are unknowns is a exception.
- the cases when 'c,z' and 'c,i' are unknowns wernt considered.
Merge pull request #139 from mohitgujarathi14/develop

Added test file for series7400ICs and corrected a bug
Fixed few PEP8 errors in gates.py
Fixed few PEP8 errors
PEP8 Fix
minor changes
Docstrings formatting
Added Johnson counter and Ring counter
Added examples and tests for Johnson Counter and Ring Counter
edited indentation of latest test functions
Merge pull request #146 from A-Hemdan/counters

Added 2 More Counters
Merge pull request #143 from debugger22/develop

Few PEP8 Fixes; Docstrings formatting and Fix in setup.py
Merge pull request #138 from A-Hemdan/TFlipFlop

Minor changes in sequential.py
Added 14stage, 8 stage counter