[kitsune] Handle immense terms for Kitsune

[jjmerchante]

This code modifies the raw mapping of Kitsune indexes to handle immense terms found in data.answers_data.content, and data.content. Thus, the corresponding field is converted to text.

[coveralls]

Pull Request Test Coverage Report for Build 8293298783

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.009%) to 85.57%

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Totals
Change from base Build 8248295975:	0.009%
Covered Lines:	7472
Relevant Lines:	8732

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💛 - Coveralls