Fix i18n-abide version to include dash

Trying to initially `npm install` dependencies and I get the following error during install:
```
LOCKDOWN ERRORS:
    package version i18n-abide@0.0.8-beta9 not in lockdown.json!
```

The following change seemed to fix the issue.

Tried this on both `node v0.10.15 (npm v1.3.5)` and  `node v0.8.24 (npm v1.2.24)` and it seemed to fix.