v0.30

 - Updated Contributors List, POD, README, and Makefile
 - Updated POD, README, and Makefile.
 - Updated miscellaneous sections of documentation.
 - Added new methods, append, concat, and contains, to
   Bubblegum::Object::String.
 - Added print and say methods to Bubblegum::Object::Scalar
 - improved efficiency for some constraint stuff