EPE-106 Rename language IDs

This change will add meaningful Language IDs for different language files.

FIXES EPE-106

Signed-off-by: Dinesh Shetye <dinesh.shetye@lexisnexis.com>
Merge pull request #151 from dineshshetye/EPE-106

EPE-106 Rename language IDs

Reviewed-By: Gordon Smith <gordon.smith@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>