Release 1.33

• VS like selection style for editor
  Signed-off-by: Konstantin Gawrilyako [email protected]
• update packages, remove browser unload code, move to vs2017
• update packages
• move to .net 4.7, update get/setter styles
• fix out of range crash
• fix file in use crash
• fix some other crash reports
• add github cmark for for future consideration
• update pandoc, mess around with cmark-gfm