adding gemspec file
fixing version constant and modifying gemspec
gotta give myself some credit
Updated README.rdoc to give thanks to Derrick Camerino (robust-dj) for adding a Gemspec.
Nuked all the junk from the previous gem-building framework.
Version bump and Gemspec cleanup/additions as well as added usage instructions to the README
Fixed Issue #1 https://github.com/jtzemp/base62/issues#issue/1: 0.base62_encode returns "0"
Merge remote-tracking branch 'upstream/master'

Conflicts:
	lib/base62.rb