`Terminal#activate!` should return the previous active Terminal
treee035e0cbcb5a225998ee05f585f75d68fcf09922
-rw-r--r-- 12 .gitignore
-rw-r--r-- 184 .manifest
-rw-r--r-- 35147 LICENSE.text
-rw-r--r-- 2134 Nfoiled.gemspec
-rw-r--r-- 3521 README.markdown
-rw-r--r-- 4087 Rakefile.rb
drwxr-xr-x - examples
drwxr-xr-x - lib
drwxr-xr-x - spec