Merge pull request #320 from JoesCat/master

Debian Bug report logs - #664789
Improved handling of class based kerning in metrics view

When the user changes a value for the kerning of two glyphs, try to
find all other digraphs in the current metrics view which are in the
same kerning class and update them at the same time.

For example, consider a class with TcToTe in it and a metrics view
with:
xTcToTefiAV
being displayed.

If the kerning between the "To" glyphs is altered, fontforge will now
also alter the Tc and Te automatically and show the kerning updates in
the main portion of the metrics window.
Merge pull request #323 from monkeyiq/2013feb/issues/311

Improved handling of class based kerning in metrics view
oops
Merge pull request #324 from monkeyiq/2013feb/issues/311v2

oops
Made the registered types less greedy, and also added sfd~1~ as a registered
type on the hopes that maybe I can allow opening the backup files directly.
Merge pull request #325 from monkeyiq/2013feb/issues/321

Made the registered types on a mac less greedy....
Update to use lldb instead of gdb
Merge pull request #326 from monkeyiq/2013feb/issues/316

Update to use lldb instead of gdb
slight update, I set the name to sfd~01 and sfd~02 and so on

you should be able to load the first 5 of these directly from finder
on the mac.
from ~ to -
from ~ to -
Merge pull request #327 from monkeyiq/2013feb/backupnames

Change from sfd.~01 to sfd-01 and allow finder to open the later directly
change from 1 to 20 for default number of backups
20 -> 32
Merge pull request #328 from monkeyiq/2013feb/autosavedefaultplusplus

Change from 1 backup autosave to 32 by default
only highlight open paths in the current active layer
Merge pull request #329 from monkeyiq/2013feb/issueforpull278

only highlight open paths in the current active layer
When in AutoGoto mode, keys without modifiers do not trigger their actions.

Also a start towards having an external preferences file
and somewhere to group the preferences variables.
Merge pull request #330 from monkeyiq/2013feb/issues/260

When in AutoGoto mode, keys without modifiers do not trigger their actions