Fixes a regression in 4.0.x where "&lt;" and "&gt;" are not unescaped to "<" and ">" when rendered as SVG text elements".
syncing up concatenated files with source files
Highstock: Fixed #3487, JS error on creating stock chart with empty series.
Merge pull request #3483 from sfishel18/master

Fixes an HTML escaping regression in 4.0.x
split tooltipformatting into header - body - footer

the item lines are now constructed in the function bodyFormatter,
allowing easier customization of the lines
Merge remote-tracking branch 'upstream/master'