Merge pull request #36 from Ricky1833/master

Finally fixed it!
Merge pull request #38 from Ricky1833/master

added check for if label contains non alphanum
Merge pull request #39 from Ricky1833/master

Added truncation of labels greater than 8 characters
Create opcode_error_exception.h
Update opcode_error_exception.h
Create opcodetab.h
Create opcode.cc
Delete v2parseAlgo.txt
Delete practice.cpp
Delete parsealgo.txt
Merge pull request #9 from IanJRigg/master

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