Bumping gaia.json for 1 gaia-central revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/e5fa53d98bb6
Author: Rick Waldron <waldron.rick@gmail.com>
Desc: Bug 923739 - [Messages] Words that are separated by a period are treated as Browser links regardless of content r=julienw

https://bugzilla.mozilla.org/show_bug.cgi?id=923739

- Transform strings to clickable links of they match the URL expression and the matched tld portion is a valid
- Valid tlds stored in whitelist array.
- Reject only strings that didn't start with http(s)

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>