issue-#61 Unicode support for fold labels

[Josef Templ]

This voting is about merging the changes of topic branch issue-#61
(Unicode support for fold labels) to master.
For the issue see http://redmine.blackboxframework.org/issues/61.
For the changes see http://redmine.blackboxframework.org/pr ... 8af2a9c8e3.

The changes are based on the proposal in CPC 1.7 rc5, change list number 28, sub-issue 1 or 3.
There are no incompatibilities introduced in the storage format unless Unicode is really used.

Gentlemen, please cast your vote.

- Josef