Pdfcrowd API clients updated to 5.2.0

New:

We added new methods to identify HTML documents stored in the input archive. Use these methods if the input archive contains multiple HTML documents.

• setZipMainFilename()
• setZipHeaderFilename()
• setZipFooterFilename()

We added new methods related to PDF metadata.

   HTML to PDF:

• setExtractMetaTags()

   PDF to PDF supports the same methods as HTML to PDF:

• setTitle()
• setSubject()
• setAuthor()
• setKeywords()

Fixed:

• [Ruby] Fixed handling of UTF-8 options and binary input files.