CSS 3 property: text-autospace and text-spacing

[Atry]

The property text-autospace was supported by Internet Explorer many years ago. It was in an old version of CSS Text Module Level 3 draft, then renamed to text-spacing and moved to current CSS Text Module Level 4 draft

• https://msdn.microsoft.com/library/ms531164(v=vs.85).aspx
• http://help.dottoro.com/lcrgkpao.php
• https://www.w3.org/TR/2011/WD-css3-text-20110215/#text-autospace
• https://www.w3.org/TR/css-text-4/#text-spacing-property
• https://bugzilla.mozilla.org/show_bug.cgi?id=289130

[cpplearner]

+1