Updated mediawiki/extensions
Project: mediawiki/extensions/Elastica  153a5213f654030b92b19825e149aed3e11da1b6

Improve information about Elastica

- We don't use submodules anymore
- Include upstream's name in description
- Version based on upstream so I have less versions to remember

Change-Id: I5af1595635ba4d1c09940f11ce5ae4f323fb11c9