Merge pull request #2 from GerryG/master

0.1.5, fix Session/Account issue
upgraded to_show api
updated version
Regenerate gemspec for version 0.1.6
got rid of our old unescape
fixed up piece_names
Regenerate gemspec for version 0.1.7
fixed ruby 2.0 bugs
Regenerate gemspec for version 0.1.8
removed some overly-Wagny configuration, generalized for superclass overrides
Regenerate gemspec for version 0.2.0
fixed var_re bug
fixed ruby 1.8.7 bug
fixed #replace_part
regenerated gemspec