Merge branch 'release/0.2.0'
Fix typos and markup.
Version bump.
unloadHandler had a typo.
Merge branch 'hotfix/0.2.1' into develop
Merge branch 'develop' of https://github.com/mangalam-research/wed into develop
Merge branch 'develop' of https://github.com/mangalam-research/wed into develop
Make unwrap return the chilren that were unwrapped.
setCaret() now accepts arrays.
Moved insert into text from lib/wed/transformation.js to lib/wed/domutil.js
Support for invisible placeholders.
Support for fake caret. This allows wed to put the caret where the browser might not want it.
Fixed a bug in endGroup().
Added getGroup().
Added insertText and deleteText. Added tests for these and other functions.
Handle the presence of _wed_caret.
Have undo end all groups in effect before performing the undo.
Reformatted the code.
Don't pass text nodes to added/removed-element and included/excluded-element.
Make building test files required only if the test suite is run.