Encoder bugfix for numeric strings.

Fixed bug in encoder which caused it to handle strings which
coerced to numbers incorrectly. Added unit test.

Cleaned up a few minor declaration comma vs. semi-colon issues.
Encoder bugfix for numeric strings.

Fixed bug in encoder which caused it to handle strings which
coerced to numbers incorrectly. Added unit test.

Cleaned up a few minor declaration comma vs. semi-colon issues.
Merge branch 'master' of https://github.com/kellycampbell/z85.node

Conflicts:
	test/encode.test.js
Merge pull request #1 from kellycampbell/master

Encoder bugfix for numeric strings.