Tika full-text search improvements

In Domino 12.0.2, Tika is upgraded to version 2.4.1, which corrects recent security issues for all platforms, and affords substantially greater reliability for Windows, Linux, and Aix.

Additionally, Tika performance when filtering attachments is improved by excluding embedded/nested attachment files by default.

Note: Full text searches sometimes don't return expected results when some documents with PDF attachments are involved. The search results might contain false-negative or false-positive results. For a workaround, see the article Full Text Index: some PDFs are not tokenized correctly using Tika default settings on the HCL Support site.