1.9.1

• The math popup preview can now be positioned below instead of above your equation source, so it doesn't obscure text above your equation (#257 by @bdm-k)
• Added lVert and rVert default snippets, auto-enlarge and conceal (#253 by @Comprehensive-Jason)
• Snippets can now have more than 9 tabstop placeholders (#256 by @git-wil)
• Default snippets: Added overbrace shortcut (#249 by @you-n-g)
• Default snippets: Matrix environment snippets (e.g. pmatrix) now take into account block/inline math