Added my decision tree code
Added main.py. Currently runs decision trees

This can be adjusted to run whatever the main focus of the project
currently is using command line arguments
Include spam data to demo decision tree code
Fairly significant optimizations using numpy
add missing import
More numpy optimization
remove unused avg() function
More accurate command line name
Use forest by default
added my logistic regression code
Modified main.py to run logistic or decision trees
Merge pull request #3 from Vadskye/master

Added my decision tree code for potential use as a base