Merge pull request #96 from jashkenas/master

Update to master
deprecate methods
 Changes to be committed:
	modified:   lib/ruby-processing/app.rb
	modified:   lib/ruby-processing/helper_methods.rb
	modified:   lib/ruby-processing/version.rb
Now we are cooking removing eval from app, actually deprecate methods.
add deprecated degrees method
Merge pull request #97 from jashkenas/noeval

Noeval