Changed PWP::Encoding to PWP::SingleEncoding.
Merge pull request #2 from sergeyromanov/patch-2

Changed PWP::Encoding to PWP::SingleEncoding.
Fixed typo where exceptions were specified.
Merge branch 'develop' of github.com:alnewkirk/Machine-State into develop
Updated POD, Makefile, README, etc.
v0.05

 - Updated POD, Makefile, README, etc.
 - Fixed typo where exceptions were specified.
 - Changed PWP::Encoding to PWP::SingleEncoding.