Fixes for edit mode in EOS

The change event for the WYSIWYG is not attached again when edit mode is
re-enabled.

Re-enabled WYSIWYGs are now initialized correctly.

It is no longer possible to disable edit mode if there are changes done to
texts on the page.
Merge pull request #79 from stenbacka/ck-inline-toggle-fixes

Fixes for edit mode in EOS