Fixed incorrect tag mapping

For contact tags and other keyword elements the simple analyzer was
used. This incorrectly assumed that tags like "abc123" would be kept
together. Instead, simple stripped off the numbers.

Tagged analyzer created to transliterate tags into ascii and lowercase
the letters. Searching will allow "ABC123" and "abc123" to find the same
tags. It could be argued that we should not use ascii transliteration.

This deployment will allow creating a separate elasticsearch index.
However, we will need another deployment to use it. This is a brittle
system. Something better is needed.
Change contact index to rcrm-contacts

Scope index by rcrm- prefix. We want this app to behave well on shared
elasticsearch instances.