open svg on mac osx
added Bundle depds
improved the csv read method
Update shoulda support
Merge remote-tracking branch 'vpereira/master' into vpereira
fix Simple Regression example in docs

Example referred to a SimpleRegression class which doesn't exist. Updated to working example.
New Wilcoxon Signed Rank test
Updated to 1.3.0
Updated README.txt for v1.3.0
Updated Gemfile
Merge pull request #15 from Blahah/patch-1

fix Regression::Simple example in docs
Merge remote-tracking branch 'claudio/master'

Conflicts:
	Rakefile
	lib/statsample/analysis/suite.rb