Remove old window scaling

Update icons

Partial copy and paste, needs more work.

OTF offer

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

Merge ../birdfont-2.x

Fix export setting

Merge ../birdfont-2.x

Revert "Store error tolerance for conversion from cubic to quadratic paths"

This reverts commit 2e10c9e35c3160b11abe14f7aaf87777d4b90af6.

Merge ../birdfont-2.x

Store error tolerance for conversion from cubic to quadratic paths

This feature adds a new export setting for adjusting the number of points
added to a Beziér path when it is converted from its cubic to its quadratic
form.

White space fixes

Use a directory within the sandbox for exporting fonts on Mac OS X

Set units per em in export settings

Generate Mac specific TTF fonts
This should fix the fontbook issue

Generate mac specific truetype fonts

Fix progress wheel

Show folder in export settings

Export settings
Export only the selected format and remove TTF file if only an EOT file is
exported.