new function to anonymise charts if requiring anonymised report

bugfixes and formatting tweaks for print_run; copy_to clone needed deflate => 0; ajax date validation required no warnings uninitialized for hr & min fields

fixed warnings in Devel::Cycle when cloning RDBO object in _generate_copy() - using as_tree hashref now; stopped 'pre' text word-breaking; removed blockquote from make_chart.tt

report data maps for guest_view template

added USE_FILE_SESSIONS flag to C::R::RecordHandler::_format_report() for use in chart url if called via cron, to force file sessions instead of creating new db session

added _parse_data_val() function to C::Roles::Chart to return ::NoValue for null vals, so setGapColor() works as intended; moved make_chart logic from report/default.tt and record/body.tt to separate site/make_chart.tt; some tweaks to cron scripts