Logging Documentation

- Commenting logging implementation
- Updating README documentation for Winston
Ignoring files

- Ignore log files
- Ignore eclipse IDE file
Use Gnip rules and tags to categorise tweets

- No longer parse tweets manually, let Gnip categorize them based on
rule tags
- Remove tweet parsing options from config and replace with Gnip rule
configuration
- Changed data stream handling to use Gnip activity stream instead of
twitter raw so we can get matching rules and tags
Cleaning up i18n implementation

- Leaving current config items but reducing duplication in calling code
Tidying Gnip rules

- Merging geo rules into one