Include I18n to extract strings scattered in app

Each command has descriptions and errors that have been scattered
across the CLI and makes cosmetic changes harder. All the commands seem
to have slightly different voices or punctuation based on the authors.

This first pass standardises the help for name and description
Extract help text from cloudips commands
Extract help text from accounts command
Extract help text from config commands
Extract help text from firewall commands
Extract help text from groups commands
Extract help text from images commands
Extract help text commands from lbs commands
Extract help text from servers commands
Extract help text from users commands
Merge pull request #49 from brightbox/i18n

Extract help text using I18n to help standardise wording