Handle special characters when indexing

[andkamau]

Currently, indexing names or addresses with characters such as apostrophes - fails.

An error occurred (DocumentServiceException) when calling the UploadDocuments operation: { ["lexical error: inside a string, '' occurs before a character which it may not.
"name": "EZEKIEL NZUVA KING'OO", "practice_type": "
(right here) ------^
(near operation with index 1; document_id 2753/Ra00808/16)"] }