Remove strfun
Merge branch 'master' of https://github.com/tzuohann/MASTER
Added PROPACK
trim
Added functionality to test  trimming methods and different numbers of Principal components

I also added extensive comments to explain how it works.
Results from Cross Validation
Added featureSelector.m to repo
big bug fix.
Merge branch 'robbie' into joao

Conflicts:
	code/spellcheck.py
	data/text_spellchecked.txt