Removed inheritance

Removed inheritance because it wasn't part of requirement. A get and set for each new deceleration was needed
Create transaction.py
Update transaction.py
Merge pull request #6 from Noflen/patch-2

Removed inheritance
Merge pull request #7 from KnightPounds/master

add transaction
Merge remote-tracking branch 'upstream/master'
Added Class diagram and formatted readme.md

Added Class diagram and formatted readme.md