Reference gemspec from Gemfile
get dependencies before setting paths
gemspec: add rspec as dependency
gemspec: Clean up and rename
extconf: Rename to nmatrix-fftw
extconf: remove commented code
change name of require to nmatrix-fftw
rspec helper add config
Remove old gemspec
specs clean up residual from broken merge

and rename to nmatrix-fftw
Update README
gemspec fix indentation
gemspec remove reference to test folder
gemspec remove repeated dependency rpec
gemspec add rspec version
Rakefile: remove extention task
extconf nmatrix header is not systemwide
Add version info
gemspec include version in require
Rename