CHANGES IN VERSION 1.2
   o Support SQL style comments (thanks to Andy Choens for the pull request). SQL files can have -- and --'. The latter are used to generage the Roxygen style documentation.
   o Added support for RJDBC database connections.

CHANGES IN VERSION 1.1.2
   o Updates for compatibility with roxygen2 version 4.0

CHANGES IN VERSION 1.1.1
   o Fixes to pass new R CMD CHECK errors and changes to the roxygen2 package.
   o Changed the default file format for cacheQuery to rda.

CHANGES IN VERSION 1.1
  NEW FEATURES:
   o If the maxLevels parameter on execQuery is NULL, then the recode function will not be called.

  BUG FIXES:
   o Fixed recoding of columns to not fail if the query returned no columns.

CHANGES IN VERSION 1.0
  NEW FEATURES:
   o Initial version!
   o Provides a framework for managing a library of SQL files.
   o Supports RSQLite, RODBC, RMySQL, and RPostgreSQL.
   o Interactive SQL mode to enter SQL commands and execute them against a database without leaving R.
   o Data dictionary template.