the sourcing of all .R files is moved into setupWorkEnvironment.R.
Now, this is the only file that has to be staged and a subsequent setupWorkEnvironment() call will setup everything.
Merge pull request #16 from gianba/setup_enviroment

the sourcing of all .R files is moved into setupWorkEnvironment.R.
Add missing 'n'
Merge pull request #17 from gianba/fix-typo

Add missing 'n'
Factorisation

- Use variable data as it might be raw eeg, ica or pca data
- Factor out the number of features beforehand
Prepare eeg filtering test

- Use only frequency features for the test
Return original signal for further analysis