Merge pull request #25 from hectorcorrea/version

Version

Merge pull request #23 from hectorcorrea/yaz

Adds support for YAZ output format

Merge pull request #18 from hectorcorrea/count-and-regex

Adds count-only as a format parameter and a new parameter to support regex searches

Merge pull request #11 from hectorcorrea/matchFields

Match fields

Note new XML sample file

Added option to output as XML

Restructured the code to follow a more conventional project layout (see 

https://github.com/golang-standards/project-layout)

Merge pull request #1 from hectorcorrea/newreader

Refactor

Better error handling. Funnels calls to panic to a single function th…

…at outputs the state of the file processing at the time of the panic()

oops\!