Fix #1900 enh(exporter): add header and headerStyle options
Merge pull request #1915 from PaulL1/exporter_title

Fix #1900 enh(exporter): add header and headerStyle options
Fix #1847(icons): font path broke icons, move @
Merge pull request #1916 from PaulL1/font_path_fix

Fix #1847(icons): font path broke icons, move @
Fix #1886(tutorial): fix tutorial going to plunker

Also fix e2e tests broken in earlier commits.
Merge pull request #1918 from PaulL1/1886_fix_sort_plunker

Fix #1886(tutorial): fix tutorial going to plunker
adds support for custom css class on footer cell