Merge branch 'master' of github.com:johanmattssonm/birdfont

Hide resize handle when objects are moved and merge birdfont-2.x

Ignore alternates with no corresponding glyph in the font

White space fixes

Merge branch 'master' of github.com:johanmattssonm/birdfont

Select replacement glyph in OTF feature tab
All alternate glyphs and the glyph that will replaced is referenced by name
(not unicode).

Generate swsh, salt, smcp and c2sc tables.
This commit adds support for swashes, stylistic alternatives, small caps and
conversion from uppercase to small caps

GUI for selecting OTF feature tags

Fix stylistic alternatives

Save stylistic alternatives to bf fonts and make gsub features optional

Generate stylistic alternates and fix PostScript names

Restructure lookups in gsub table
This commit does also change the order of subtables in the gsub table.
1. Chained substitutions
2. Context for chained substitutions
3. Regular ligatures